Assertion: preposition | /r/HasProperty | a class of words
Facets:
Source sentences:
text: Prepositions and postpositions, together called adpositions (or broadly, in English, simply prepositions), are a class of words used to express spatial or temporal relations (in, under, towards, before) or mark various semantic roles (of, for).
text: Prepositions are a class of words that indicate relationships between nouns, pronouns and other words in a sentence.
text: Prepositions are a class of words which express relationship.