With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: Foreign folk dancers are dressed in outfits of bright lime green, red and white tops, lime green headbands and red, blousy trousers and open-toed specialty shoes while dancing in a city street, while spectators enjoy the show. Folk dancers are entertaining the streets during a parade.
text_B: The parade starts two hours after their practice.
weakener.