With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: A redheaded young boy in front of a fence holds a fishing pole in one hand and a line with a fish at the end of it in the other. A boy posing for the camera with the fish he has just caught.
text_B: the boy smiles and stares straight ahead for a moment unmoving
strengthener.