With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: A bald man with glasses grins at the camera while he takes the roast poultry out of the oven with his black oven mitts. A bald man smiles at the camera during his cooking show.
text_B: The man explains to the camera how to cut the poultry once it is out of the oven.
strengthener.