With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Germany identified the ammunition as 7.65 Mannlicher to differentiate it from the 7.63×25 mm Mauser cartridge.
text_B: Germany began manufacturing ammunition after World War I, but identified the ammunition as 7.65 Mannlicher to differentiate it from the 7.63×25mm Mauser cartridge.
neutral.