With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Romelu Lukaku was only in one football tournament.
text_B: During part of the Peloponnesian War , Athens attacked Melos .. Peloponnesian War. Peloponnesian War. Melos. Melos. Athens. Athens. The catastrophic results of the war on Melos were a result of what Thucydides called realism .. Melos. Melos. Thucydides. Thucydides. Thucydides , often considered the father of political realism , wrote about the Peloponnesian War from the vantage point of Athens , and in The Melian Dialogue , gives his point of view on what happened when the Athenians defeated the Melians and then proceeded to kill all the men , and sell the women and children .. Peloponnesian War. Peloponnesian War. Thucydides. Thucydides. political realism. political realism. Athens. Athens. The Melian Dialogue. The Melian Debate. Thucydides wrote the Melian Dialogue to exemplify what he deemed the cause of the defeat , which he pinpointed as realism .. Thucydides. Thucydides. The Peloponnesian War was an early example that exhibited the disasters , which can arise between different groups when a stronger power exerts its dominance over a weaker one .. Peloponnesian War. Peloponnesian War
not_related.