Task: Property Constraint Reasoning (ontology: Legal/LKIF_Core_Ontology)

The property 'spatial reference' applies to instances of 'Place', and 'Relative Place' is a subclass of 'Place'. Which class can appear as the value of 'spatial reference' for instances of 'Relative Place'?

A. Composition
B. Thing
C. Part
D. Spatio Temporal Occurrence

Answer: Thing