Task: Property Constraint Reasoning (ontology: Earth_Environment/SWEET)

The property 'spatial relation' applies to instances of 'geometrical object', and 'geometrical object 2d' is a subclass of 'geometrical object'. Which class can appear as the value of 'spatial relation' for instances of 'geometrical object 2d'?

A. distortion
B. geometrical object
C. thinning
D. geological phenomena

Answer: geometrical object