Task: Property Constraint Reasoning (ontology: Sciences/Conference)

The property 'has a committee chair' applies to instances of 'Committee', and 'Steering committee' is a subclass of 'Committee'. Which class can appear as the value of 'has a committee chair' for instances of 'Steering committee'?

A. Regular author
B. Passive conference participant
C. Registeered applicant
D. Chair

Answer: Chair