Assertion: trombone | /r/HasProperty | popular
Facets:
value: around the 20th century
type: TEMPORAL
value: very
type: DEGREE
Source sentences:
text: The swing era of jazz reached its peak in the 1930s, where the trombone was then popular.
text: and the trombone is a popular choice.
text: The trombone is a popular instrument to portray dark moments in operas such as "Don Giovanni" (by Mozart), or "Till Eulenspiegel" (by Richard Stauss).
text: The trombone is very popular for two reasons.
text: Around the 20th century, the trombone was especially important and popular with brass bands in many southern cities in America.