Assertion: dragonfly's gill | /r/AtLocation | their rectums
Facets:
value: unlike those of damselflies
type: OTHER
Source sentences:
text: They breathe through gills located in their rectums (there's an interesting bit of insect trivia for you), and can propel themselves forward by expelling water from the anus.
text: Gills are located inside the rectum (unlike those of damselflies, which extend from the hind end like 3 leaflike tails).