With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Twenty One Pilots has a drummer.
text_B: Crib bridges were made from horizontally placed logs .. The logs were laid first lengthwise , and then crosswise , in several layers .. This consumed more trees than building trestle bridges , but they were easier to build without cranes or rams .. trestle. trestle. Less common are crib bridges made from stone , such as the Bailey Island Bridge .. Bailey Island Bridge. Bailey Island Bridge
not_related.