Assertion: hamster | /r/HasProperty | held captive
Facets:
value: since the 1940s
type: TEMPORAL
value: as pets
type: MANNER
value: as test subjects
type: MANNER
Source sentences:
text: Noted for their large cheek pouches and short stubby tails, hamsters were found in Syria in 1839 and have been held captive as pets or test subjects since the 1940s.