With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: On a dimly lit stage, two men, one with a boom mike, another with a camera, face a third man sitting alone in the audience. An actor being filmed by a camera in an audience scene in a theature.
text_B: All three men keep checking the clock on the wall, while the man in the audience sighs.
weakener.