Assertion: preposition | /r/HasProperty | pronoun
Facets:
value: usually
type: DEGREE
value: with an article
type: OTHER
Source sentences:
text: A preposition is followed by the object of the preposition, which is either a noun or a pronoun (sometimes with an article/adjective in front of it), never a verb.
text: A prepositional phrase begins with a preposition and continues until the object of the preposition (which is usually a noun or pronoun).
text: A preposition must have an object of the preposition, which is the noun or pronoun that relates to something else in the sentence.
text: Behind them Behind = preposition; them = pronoun or the object of the preposition.