Assertion: progressive folk | /r/CapableOf | disappear as term
Facets:
Source sentences:
text: Although artists like Dylan and Baez continued their careers with considerable success in the 1970s as American folk music began to fragment with groups focusing on areas such as blues, bluegrass and oldtime, progressive folk began to disappear as a term and its major themes shifted into 'contemporary folk', focusing on new singer-songwriters using the coffee-house circuit, including such artists as Chris Castle, Steve Goodman, and John Prine.