Assertion: cd | /r/CapableOf | gain popularity
Facets:
Source sentences:
text: As the price of players gradually came down, and with the introduction of the portable Discman the CD began to gain popularity in the larger popular and rock music markets.
text: As the price of players gradually came down, and with the introduction of the portable Walkman, the CD began to gain popularity in the larger popular and rock music markets.