Assertion: horseshoe crab's eye | /r/HasProperty | photoreceptor
Facets:
value: on its top shell
type: LOCATION
value: along its tail
type: LOCATION
Source sentences:
text: The rudimentary lateral eyes are photoreceptors that become functional just before the embryo hatches.
text: The horseshoe crab also has numerous smaller eyes called photoreceptors on its top shell and along its tail.