With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: A bunch of people in wheelchairs are pushing one another, while a man takes a picture of them. A bunch of people in wheelchairs are pushing one another, while a man takes a picture of them as they compete in a tournament
text_B: The people in the nursing home help each other out as much as they can.
weakener.