question: How many God of War mainline games released on the PS2 in the US?
answerText: 2
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questionEntity.label: God of War
questionEntity.mention: God of War
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questionEntity.label: United States of America
questionEntity.mention: US
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questionEntity.label: PlayStation 2
questionEntity.mention: PS2
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answerEntity.label: God of War
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answerEntity.label: God of War II