Assertion: tap | /r/AtLocation | sharp decline
Facets:
value: by the 1950s
type: TEMPORAL
value: due to a number of causes
type: CAUSE
Source sentences:
text: By the 1950s, tap was in a sharp decline, due to a number of causes, among them the demise of vaudeville and the variety act; the devaluing of tap dance on film; the shift toward ballet and modern dance on the Broadway stage; the imposition of a federal tax on dance floor that closed ballrooms and eclipsed the big bands; and the advent of the jazz combo and the desire of musicians to play in a more intimate and concertized format.