With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: A woman on stage lit from behind standing in front of a microphone wearing a gray top and black pants with a red, white, and blue flag wrapped part way around the lower half of her body A woman is getting ready to perform on stage, wearing patriotic garb.
text_B: The woman is introducing the acts at a 4th of July show.
weakener.