General
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-5 Entity (missing or extra)
-5 Relationship (missing or extra)
-5 Attribute (missing or extra or misplaced)
-5 Key (wrong or not showing)
-5 Contraint (wrong)

Specific
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-10 Model consulting session as a relationship
-15 Model consulting session as one rel btw consultant & session and one rel btw session & company
-8 Model date as an entity set
-5 Place date as an attr on a relationship