With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Isabella of France was a regent.
text_B: Medicine Owl Lake is located in Glacier National Park , in the U. S. state of Montana .. Glacier National Park. Glacier National Park ( U.S. ). U. S. state. U. S. state. Montana. Montana. Amphitheater Mountain rises to the southwest and Medicine Owl Peak is immediately west of the lake .. Amphitheater Mountain. Amphitheater Mountain ( Montana ). Medicine Owl Peak. Medicine Owl Peak. Medicine Owl Lake is in the remote backcountry of Glacier National Park and no designated or maintained trails are nearby .. Glacier National Park. Glacier National Park ( U.S. )
not_related.