Assertion: guinea pig | /r/ObjectUse | used in english
Facets:
value: as a metaphor for something
type: PURPOSE
value: commonly
type: DEGREE
Source sentences:
text: Although the term 'guinea pig' is still commonly used in English as a metaphor for something being experimented on.
text: In the Andes, guinea pigs are still used in traditional medicine for treating arthritis and jaundice.