With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: In the foreground, a man in a striped shirt drinks something from a bottle while behind him stand two women with dark hair and black shirts in front of a crowd in an urban setting. A man and two women are in a band, playing music.
text_B: None of the people on stage have a microphone or instrument.
weakener.