With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Museum of Science and Industry was the second-largest cultural attraction in Chicago.
text_B: Wolf House was a 26-room mansion in Glen Ellen , California , built by novelist Jack London and his wife Charmian London .. Jack London. Jack London. Charmian London. Charmian London. The house burned on August 22 , 1913 , shortly before the Londons were planning to move in .. Stone ruins of the never-occupied home still stand , and are part of Jack London State Historic Park , which has been a National Historic Landmark since 1963 .. Jack London. Jack London. Jack London State Historic Park. Jack London State Historic Park. National Historic Landmark. National Historic Landmark
not_related.