With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Rod Serling clashed with activists.
text_B: Vasileios Melas -LRB- Βασιλειος Μελας Athens , 1879 -- 1956 -RRB- was an officer of the Greek army .. Athens. Athens. Greek army. Greek army. He was Pavlos Melas ' younger brother .. Pavlos Melas. Pavlos Melas
not_related.