Assertion: eagle ray's tail | /r/HasAspect | barb
Facets:
value: usually
type: TEMPORAL
value: on it
type: LOCATION
value: at the base
type: LOCATION
Source sentences:
text: The long whip-like tail has, at the base, long serrated-edged spines or barbs which are venomous.
text: The tail usually has one barb on it.