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

Suppose an individual ?x satisfies: amino-acid derivative(?x). Which conclusion is one valid inferred conclusion?

A. organophosphorus compound(?x)
B. nitrogen oxide(?x)
C. nitro compound(?x)
D. organonitrogen compound(?x)

Answer: organonitrogen compound(?x)