With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: A little girl, about three-years-old and wearing colorful swim goggles, stands ankle-deep on the stairs of an in-ground pool or hot tub while gripping the metal handrail above her head with both hands. A girl in green goggles stands on the steps of a swimming pool holding onto the brass handrail above her
text_B: The brass handrail glints in the sun.
strengthener.