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

Suppose an individual ?x satisfies: arsenic molecular entity(?x). Which conclusion is one valid inferred conclusion?

A. halogen molecular entity(?x)
B. pnictogen hydride(?x)
C. pnictogen molecular entity(?x)
D. elemental pnictogen(?x)

Answer: pnictogen molecular entity(?x)