With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Justin Trudeau quit a program in 1990.
text_B: Hankha is a district -LRB- amphoe -RRB- in the southwestern part of Chai Nat Province , central Thailand .. Province. Provinces of Thailand. Chai Nat. Chai Nat Province. amphoe. amphoe. Chai Nat Province. Chai Nat Province. Thailand. Thailand
not_related.