Assertion: sponge | /r/HasProperty | only one gender
Facets:
value: at a time
type: TEMPORAL
Source sentences:
text: While most sponges are hermaphroditic, they are only one gender at a time: female, male or neuter.
text: Sponges reproduce by both asexual and sexual means, however they are only one gender at a time, being either Male or Female or neuter.