With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: San Francisco is a town.
text_B: Mahat is a village development committee in Rukum District in the Rapti Zone of western Nepal.At the time of the 2011 Nepal census it had a population of 4621 people living in 937 individual households .. Zone. Zones of Nepal. Rapti Zone. Rapti Zone. District. Districts of Nepal. Rukum District. Rukum District. village development committee. village development committee. Nepal. Nepal. 2011 Nepal census. 2011 Nepal census
not_related.