With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: Closeup of a young caucasian boy with brown eyes, and in a red fleece zip-up jacket, holding up a monarch butterfly on his index finger. A young caucasian boy wears a red fleece zip up jacket because it is freezing outside.
text_B: The monarch butterfly is healthy.
weakener.