With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: Three people, one tall male in blue polo shirt and khaki shorts with tan shoes, brunette, heavy chested female in white summer blouse and denim shorts, second female wearing yellow rimmed sunglasses, yellow blouse and sandals, walking across a city street. The male is wearing a hat.
text_B: The sun was unbeareable.
strengthener.