Assertion: soybean | /r/ObjectUse | used in the u.s.
Facets:
value: as a commercial crop
type: PURPOSE
value: during the early 1900s
type: TEMPORAL
value: for a little bit of background
type: PURPOSE
Source sentences:
text: For a little bit of background, soybeans were initially used in the U.S. as a commercial crop during the early 1900s.