Text: The bands are loud they have to be to compete with the groups of Elvis imitators in black leather jackets and sideburns who also lay claim to some of this great free space, dancing in circles to the oldies on enormous boomboxes.
Entailment: There are Elvis imitators performing in the space, with their black leather jackets and sideburns.
Contradiction: Only the band of instrumental singers are allowed to perform in this area.