Assertion: noun's form | /r/HasProperty | irregular plural
Facets:
Source sentences:
text: Some nouns have irregular plural forms: man becomes men, and woman becomes women.
text: The most common reason for a noun to take on an irregular form is because it has been incorporated into a language from another.
text: In the names of sports teams, sometimes a noun will be given a regular plural in -s even though that noun in normal use has an irregular plural form (a particular case of headless nouns as described above).