With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: At a naval yard, a man in a white Navy officer's uniform is standing by two older men having a discussion. An impersonating Navy officer is watching a conversation.
text_B: One of the older men says to the man in white 'I don't recognize you', as the man in white trembles a bit.
strengthener.