Assertion: finger | /r/HasProperty | adaption
Facets:
value: from a time
type: TEMPORAL
value: possibly
type: DEGREE
Source sentences:
text: One hypothesis for why this occurs, the “rain tread” hypothesis, posits that the wrinkles may help the fingers grip things when wet, possibly being an adaption from a time when humans dealt with rain and dew in forested primate habitats.