Assertion: bog lemming | /r/HasProperty | synaptomys borealis
Facets:
Source sentences:
text: The northern bog lemming (Synaptomys borealis) is a small North American lemming.
text: Three species of lemmings inhabit Alaska tundra, the brown lemming (Lemmus sibiricus), collard lemming (Dicrostonyx torquatus), and the northern bog lemming (Synaptomys borealis) .