With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: A man in a park is leaning on a bar looking, towards the camera while a boy in the background is leaning over a bar, and a lady with a bag is reaching towards a girl. The boy is leaning over a bar outside.
text_B: The sun is shining and butterflies are fluttering by.
strengthener.