With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Las Vegas is the first designated county seat of Clark County.
text_B: Ariha Nahiyah is a Syrian Nahiyah -LRB- Subdistrict -RRB- located in Ariha District in Idlib .. Idlib. Idlib Governorate. District. Districts of Syria. Ariha District. Ariha District. Nahiyah. Nahiyah. According to the Syria Central Bureau of Statistics -LRB- CBS -RRB- , Ariha Nahiyah had a population of 83487 in the 2004 census .. Nahiyah. Nahiyah. Syria Central Bureau of Statistics. Central Bureau of Statistics ( Syria )
not_related.