Assertion: rock | /r/HasProperty | perry como
Facets:
value: in crooners
type: LOCATION
value: in american record sales
type: LOCATION
Source sentences:
text: Soon rock and roll was the major force in American record sales and crooners, such as Eddie Fisher, Perry Como, and Patti Page, who had dominated the previous decade of popular music, found their access to the pop charts significantly curtailed.