Assertion: prefix | /r/HasProperty | word
Facets:
Source sentences:
text: A prefix is a series of letters, or a word, that is added to the beginning of a word and changes the meaning.
text: A prefix is a letter or word that is added to the beginning of a word to alter its meaning.
text: Prefixes are words that don’t mean anything on their own.
text: Prefixes are words that you add to beginning of root words.