Assertion: arctic wolf's prey | /r/HasProperty | lemming
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Source sentences:
text: the main prey is lemmings, they will hunt and catch other small animals and will also scavenge food from beneath sea-bird colonies on cliffs and left overs from predators such as polar bears.
text: The main prey in the tundra is lemmings, which is why the white fox is often called the “lemming fox.