Task: SWRL-based Rule Reasoning (ontology: Food_Agriculture/Crop_Ontology)

Suppose an individual ?x satisfies: Juici Obser count(?x). Which conclusion is one valid inferred conclusion?

A. Tree number - measurement, counting(?x)
B. Variable(?x)
C. Number of apples showing sign of mealy decay(?x)
D. Apple acidity standard(?x)

Answer: Variable(?x)