With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: A girl in a red and black leotard with white writing is standing next to a man in a cap and a girl in a hot pink and black and white checkered outfit. There are 3 people standing next to each other while they wait for candy after ringing a door bell.
text_B: The aerobics class is co-ed and attracts a lot of attendees.
weakener.