Assertion: tarantula's prey | /r/HasProperty | alive
Facets:
value: for quite some time
type: TEMPORAL
value: often
type: DEGREE
Source sentences:
text: They begin eating immediately, even though the prey is often still alive for quite some time.
text: 1-2 moths or flies per day is usually sufficient, but the prey must be alive and mobile when released into the mantid's cage.