With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ann Romney is the wife of a Roman Catholic.
text_B: The white-tailed swallow -LRB- Hirundo megaensis -RRB- is a species of bird in the family Hirundinidae .. Hirundinidae. Hirundinidae. Hirundo. Hirundo. bird. bird. It is endemic to Ethiopia .. endemic. endemic. Ethiopia. Ethiopia. Its natural habitat is subtropical or tropical high-altitude shrubland .. habitat. habitat. shrubland. shrubland. It is threatened by habitat loss .. habitat. habitat. habitat loss. habitat loss
not_related.