Task: SWRL-based Rule Reasoning (ontology: Earth_Environment/EnvironmentOntology)

Suppose an individual ?x satisfies: heterocyclic compound(?x). Which conclusion is one valid inferred conclusion?

A. aromatic compound(?x)
B. cyclic compound(?x)
C. organic cyclic compound(?x)
D. monocyclic compound(?x)

Answer: cyclic compound(?x)