Assertion: arthropod's pair | /r/HasProperty | referred
Facets:
value: as antennules
type: OTHER
value: often
type: TEMPORAL
Source sentences:
text: Most crustaceans have two pairs of antennae (the first pair are shorter and often referred to as antennules, as labeled in figure 19.22), three pairs of chewing appendages (one pair being the mandibles), and various numbers of pairs of legs.