Assertion: jump rope | /r/CapableOf | become popular
Facets:
value: tremendously
type: DEGREE
value: in the early 1940s
type: TEMPORAL
value: in 1950s
type: TEMPORAL
Source sentences:
text: In the early 1940s and 1950s, jump rope became tremendously popular, and many children in inner cities used jumping rope as a form of play.