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gen.	a raven will not peck another raven's eye; a raven won't peck another raven's eye; a wolf will not eat wolf; a wolf won't eat wolf
idiom.	wolf won't eat wolf (Yeldar Azanbayev); wolf will not eat wolf (Yeldar Azanbayev)
proverb	dog don't eat dog (Maggie); a dog doesn't eat a dog; dog doesn't eat dog; there is honour among thieves; wolf never wars against wolf

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Proverb

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