Task: Explanation
Input (English): The Sacred Band of Thebes (Ancient Greek: Ἱερὸς Λόχος , "Hieròs Lókhos") was a troop of select soldiers, consisting of 150 pairs of male lovers which formed the elite force of the Theban army in the 4th century BC. Its predominance began with its crucial role in the Battle of Leuctra in 371 BC. It was annihilated by Philip II of Macedon in the Battle of Chaeronea in 338 BC. Question: Gorgidas was the first known Theban military leader of of troop of select soldiers annihilated in what battle? Answer: the Battle of Chaeronea
Output (English):  It was annihilated by Philip II of Macedon in the Battle of Chaeronea in 338 BC.