_:na76572b85baf498ca7183977f3a859d6xb0
<http://schema.org/description>
"While plural nouns often indicate more than one of something with a simple \"s\" or \"es,\" irregular plural nouns do not. They change the word entirely. Elf becomes elves, tooth becomes teeth!"
<https://www.pbslearningmedia.org/resource/564f9dfd-dcb0-4f32-bfad-bcab1313ae37/irregular-plural-nouns-no-nonsense-grammar/>