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

Suppose an individual ?x satisfies: purine ribonucleoside 5'-triphosphate(?x). Which conclusion is one valid inferred conclusion?

A. guanyl ribonucleotide(?x)
B. purine ribonucleotide(?x)
C. adenyl nucleotide(?x)
D. adenyl ribonucleotide(?x)

Answer: purine ribonucleotide(?x)