Examlex
In IDEF1X,extended E-R model supertype entities are called:
Pronoun
A word that takes the place of a noun, used to avoid repetition or to refer to participants in the discourse.
Pronoun
A part of speech that is used in place of a noun or noun phrase, often to avoid repetition or when the antecedent is understood.
Performers
Individuals who entertain audiences by acting, singing, dancing, or playing musical instruments.
Entertainment
Activities or performances designed to provide pleasure or relaxation to an audience.
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