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

Suppose an individual ?x satisfies: two-dimensional continuant fiat boundary(?x). Which conclusion is one valid inferred conclusion?

A. continuant fiat boundary(?x)
B. spatial region(?x)
C. one-dimensional continuant fiat boundary(?x)
D. site(?x)

Answer: continuant fiat boundary(?x)