Assertion: gerbil | /r/AtLocation | pet industry
Facets:
value: in 1964.[citation
type: TEMPORAL
value: in 1964
type: TEMPORAL
Source sentences:
text: Gerbils were first introduced to the pet industry in 1964.[citation needed]
text: Gerbils were first introduced to the pet industry in 1964.
text: Gerbils were first introduced to the pet industry in 1964.[citation needed]