Assertion: dragonfly's eye | /r/HasProperty | ocelli
Facets:
Source sentences:
text: The top of the head bears three simple eyes (ocelli), which may measure light intensity, and a tiny pair of antennae that serve no olfactory function but may measure air speed.
text: Dragonflies have compound eyes, aided by three separate eyes known as ocelli.
text: Cicada, (family Cicadidae), any of a group of sound-producing insects (order Homoptera) that have two pairs of membranous wings, prominent compound eyes, and three simple eyes (ocelli).