Assertion: widow spider | /r/HasProperty | arachnid
Facets:
Source sentences:
text: They are Arachnids, meaning they are part of the animal class Arachnida.
text: Black widow spiders are arachnids that are known for the females' unique appearance and tendency to eat their mates.
text: Since they are arachnids they only have two body segments (unlike insects, which have three).