With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Colombia is in the northwest of South America.
text_B: Aleksandr Klimenko is the name of  :. Alyaksandr Klimenka -LRB- born 1983 -RRB- , Belarusian international footballer. Alyaksandr Klimenka. Alyaksandr Klimenka. Aleksandr Klimenko -LRB- athlete -RRB- -LRB- 1970 -- 2000 -RRB- , Ukrainian shot putter
not_related.