Assertion: arthropod's pair | /r/HasProperty | secondary eyes
Facets:
Source sentences:
text: The outer pair are "secondary eyes" and there are other pairs of secondary eyes on the sides and top of its head.
text: The other pairs, called secondary eyes, are thought to be derived from the compound eyes of the ancestral chelicerates, but no longer have the separate facets typical of compound eyes.
text: The pair attached to the first segment of the head are called primary antennae or antennules.
text: The pair attached to the second segment are called secondary antennae or simply antennae.