Assertion: upright | /r/AtLocation | the united states
Facets:
value: from the 1920s
type: TEMPORAL
value: highly
type: DEGREE
value: to the 1940s
type: TEMPORAL
Source sentences:
text: Upright pianos (the largest of the verticals) were highly popular in the United States from the 1920s to the 1940s, but still a smaller version of the instrument was desired.