With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: United States Senate contains different political parties
text_B: The Zanaihorn -LRB- 2,821 m -RRB- is a mountain of the Glarus Alps , located north of Vattis in the canton of St. Gallen .. St. Gallen. Canton of St. Gallen. Glarus Alps. Glarus Alps. mountain. mountain. Vattis. Vattis. It lies on the range east of the Pizol , between the valleys of the Zanaibach and the Tersolbach .. Pizol. Pizol
not_related.