With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: A man in a gray cap, a pink tank top and short skirt, pink-and-black striped socks, and boots juggles knives in front of a brick building whose sign reads "The Pump Room" while onlookers watch. People are tipping the man that is juggling knoves
text_B: He is street artist making a living.
strengthener.