Assertion: clavichord | /r/CapableOf | become popular
Facets:
value: very
type: DEGREE
value: during the period of sentimentalism
type: TEMPORAL
Source sentences:
text: The technically more advanced clavichord became very popular but it still had its weaknesses.
text: During the period of sentimentalism, it had become incredibly popular, as music lovers were fond of the high-quality instrument.