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\samepage \begin{figure}{\em Puzzle}:
Three different houses each contain a different pet, a different
drink, and an inhabitant of a different nationality.  The following
six facts are true about these houses:
\begin{enumerate}
\item The man in the third (middle) house drinks milk.
\item The Spaniard owns the dog.
\item The Ukranian drinks the tea.
\item The Norwegian lives in the first house.
\item The Norwegian lives next to the tea-drinker.
\item The juice-drinker owns the fox.
\end{enumerate}
{\em Questions}: Who owns the zebra?  Who drinks juice? 
\label{zebra-fig}
\end{figure}
}

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\label{inher-fig}
\end{figure}
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\samepage \begin{tabular}% latex2html id marker 1268
{llp{3.0in}r}
Keyword & Kind & Description & Page \\ 
{\tt ,}               & Desc./DCL                      &
  Conjunction       
 & \pageref{COMMADESC}, \pageref{COMMADCL} \\ 
{\tt -->}             & Signature                      &
  Declare lexical entry.
 & \pageref{ARROW} \\ 
{\tt :}               & Description                    &
  Feature value.
 & \pageref{COLON} \\ 
{\tt ;}               & Desc./DCL                      &
  Disjunction.
 & \pageref{SEMIDESC}, \pageref{SEMIDCL} \\ 
{\tt ==}              & Description                    & 
  Equation.
 & \pageref{EQUAL} \\ 
{\tt =@}              & Def. Clause                    &
  Predefined token-identity definite clause predicate.
 & \pageref{EQAT} \\ 
{\tt \verb+=\=+}      & Description                    &
  Inequation.
 & \pageref{INEQ} \\ 
{\tt @}               & Description                    &
  Macro instantiation.
 & \pageref{AT} \\ 
{\tt [$\ldots$]}      & Description                    &
  Predefined list macro.
 & \pageref{LIST} \\ 
{\tt \%}              & Prolog                         &
  Comment delimiter.
 & \pageref{PERCENT} \\ 
{\tt abort}           & {\tt rec}                      &
  Abort parse.
 & \pageref{ABORT} \\ 
{\tt add}             & {\tt rec}                      &
  Add the current edge.
 & \pageref{ADD} \\ 
{\tt approp}          & {\sc ale}                      &
  Show value restriction on a feature at a type.
 & \pageref{APPROP} \\  
{\tt assert}          & Prolog                         &
  Add clause to Prolog database.
 & \pageref{ASSERT} \\ 
{\tt bot}             & Type                           &
  In an {\sc ale} signature, this type must appear, and must subsume all of the
  other types.
 & \pageref{BOT} \\ 
{\tt break}           & {\tt rec}                      &
  Invoke Prolog break.
 & \pageref{BREAK} \\ 
{\tt compile\_gram}   & {\sc ale}                      &
  Compile {\sc ale} signature (or parts of it --- see table, 
  p.~\pageref{TABLE}).
 & \pageref{COMPILEGRAM} \\ 
{\tt compile}         & Prolog                         &
  Compile a Prolog file.
 & \pageref{COMPILE} \\ 
{\tt cons}            & Signature                      &
  Declare type constraint.
 & \pageref{CONS}, \pageref{GOAL} 
\end{tabular}
}

{\newpage
\clearpage
\samepage \begin{tabular}% latex2html id marker 1321
{llp{3.0in}r}
Keyword & Kind & Description & Page \\ 
{\tt consult}         & Prolog                         &
  Load Prolog file (such as an {\sc ale} signature) into database.
 & \pageref{CONSULT} \\ 
{\tt control-c}       & Prolog                         &
  Prolog interrupt.
 & \pageref{CTRLC} \\ 
{\tt control-z}       & Unix                           &
  Unix interrupt.
 & \pageref{CTRLZ} \\ 
{\tt dtr-}{\em N}     & {\tt rec}/{\tt dtr}/{\tt edge} &
  Display {\em N}th daughter edge of current edge.
 & \pageref{DTRN} \\ 
{\tt edge}            & {\sc ale}                      &
  Show a chart edge.
 & \pageref{EDGE} \\ 
{\tt empty}           & {\sc ale}                      &
  Show empty categories.
 & \pageref{EMPTY} \\ 
{\tt empty}           & Signature                      &
  Declare empty category.
 & \pageref{EMPTYSIG} \\ 
{\tt ext}             & Signature                      &
  Declare extensional types.
 & \pageref{EXT} \\ 
{\tt feature}         & {\sc ale}                      &
  Test if feature exists.
 & \pageref{FEATURE} \\ 
{\tt go}              & {\tt rec}                      &
  Add current and all subsequent edges.
 & \pageref{GO} \\ 
{\tt go-}{\em N}      & {\tt rec}                      &
  Add current and all subsequent edges until node {\em N} is reached.
 & \pageref{GON} \\ 
{\tt halt}            & Prolog                         &
  Exit from Prolog.
 & \pageref{HALT} \\ 
{\tt if}              & Def. Clause                    &
  Definite clause language equivalent of {\tt :-}.
 & \pageref{IF} \\ 
{\tt interp}          & {\sc ale}                      &
  Turn on mini-interpreter.
 & \pageref{INTERP} \\ 
{\tt introduce}       & {\sc ale}                      &
  Test if a feature was introduced by a type.
 & \pageref{INTRODUCE} \\ 
{\tt lex}             & {\sc ale}                      &
  Show lexical entry.
 & \pageref{LEX} \\ 
{\tt lex\_rule}       & {\sc ale}                      &
  Show lexical rule.
 & \pageref{LEXRULE} \\ 
{\tt lex\_rule}        & Signature                      &
  Declare lexical rule.
 & \pageref{LEXRULESIG} \\ 
{\tt lex\_rule\_depth}  & {\sc ale}                      &
  Set bound on lexical rule application.
 & \pageref{LEXRULEDEPTH} \\ 
{\tt list}            & Type                           &
  This type, along with types {\tt e\_list} and {\tt ne\_list}, and features 
  {\tt HD} and {\tt TL}, must be defined in an {\sc ale} signature in order to 
  use the predefined {\tt [$\ldots$]} macro in descriptions, or the {\tt cats>}
  list-argument operator in grammatical rules.
 & \pageref{LIST}, \pageref{CATS} \\ 
{\tt macro}           & {\sc ale}                      &
  Show macro definition.
 & \pageref{MACRO} \\ 
{\tt macro}           & Signature                      &
  Declare macro.
 & \pageref{MACROSIG} \\ 
{\tt mgsat}           & {\sc ale}                      &
  Find most general satisfier(s) of a type.
 & \pageref{MGSAT} \\ 
{\tt next}            & {\tt edge}                     &
  Proceed to next edge.
 & \pageref{NEXT} \\ 
{\tt no\_write\_feat} & {\sc ale}                      &
  Hide a feature and its value.
 & \pageref{NOWRITEFEAT} \\ 
{\tt no\_write\_type} & {\sc ale}                      &
  Hide a type.
 & \pageref{NOWRITETYPE} \\ 
{\tt noadd}           & {\tt rec}                      &
  Don't add the current edge.
 & \pageref{NOADD} \\    
{\tt nointerp}        & {\sc ale}                      &
  Turn off mini-interpreter.
 & \pageref{NOINTERP} \\ 
{\tt parent}          & {\tt dtr}                      &
  Return to parent edge.
 & \pageref{PARENT} \\ 
{\tt prolog}          & Def. Clause                    &
  Definite clause hook to Prolog.
 & \pageref{PROLOG} \\  
{\tt query}           & {\sc ale}                      &
  Evaluate a definite clause.
 & \pageref{QUERY} \\ 
{\tt quiet}           & {\tt rec}                      &
  Add current and all subsequent edges without displaying them.
 & \pageref{QUIET} \\ 
{\tt rec}             & {\sc ale}                      &
  Parse a string.
 & \pageref{REC} \\ 
{\tt reload}          & {\sc ale}                      &
  Reload signature from compiled files.
 & \pageref{RELOAD} \\ 
{\tt retract}         & {\tt dtr}/{\tt edge}           &
  Retract current edge.
 & \pageref{RETRACTMI} \\ 
{\tt retract}         & Prolog                         &
  Remove clause from Prolog database.
 & \pageref{RETRACTPRO} \\ 
{\tt rule}            & {\sc ale}                      &
  Show grammatical rule.
 & \pageref{RULE} \\ 
{\tt rule}            & Signature                      &
  Declare grammatical rule.
 & \pageref{RULESIG} \\ 
{\tt show\_clause}    & {\sc ale}                      &
  Show a definite clause.
 & \pageref{SHOWCLAUSE} 
\end{tabular}
}

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{llp{3.0in}r}
Keyword & Kind & Description & Page \\ 
{\tt show\_cons}      & {\sc ale}                      &
  Show constraint for a type.
 & \pageref{SHOWCONS} \\ 
{\tt show\_type}      & {\sc ale}                      &
  Show subtypes, supertypes, constraint and most general satisfiers for a type.
 & \pageref{SHOWTYPE} \\ 
{\tt sub}             & Signature                      &
  Declare subtyping relationship.
 & \pageref{SUB} \\ 
{\tt sub\_type}       & {\sc ale}                      &
  Test subsumption between two types.
 & \pageref{SUBTYPE} \\ 
{\tt true}            & Def. Clause                    &
  Definite clause that is always satified (also used to construct ground 
  clauses in def. clause language).
 & \pageref{TRUE} \\ 
{\tt type}            & {\sc ale}                      &
  Test if type exists.
 & \pageref{TYPE} \\ 
{\tt unify\_type}     & {\sc ale}                      &
  Unify two types.
 & \pageref{UNIFYTYPE} \\ 
{\tt write\_feat}     & {\sc ale}                      &
  Don't hide a feature.
 & \pageref{WRITEFEAT} \\ 
{\tt write\_feats}    & {\sc ale}                      &
  Don't hide any features.
 & \pageref{WRITEFEATS} \\ 
{\tt write\_type}     & {\sc ale}                      &
  Don't hide a type.
 & \pageref{WRITETYPE} \\ 
{\tt write\_types}    & {\sc ale}                      &
  Don't hide any types.
 & \pageref{WRITETYPES}
\end{tabular}
}

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