Assertion: norway lemming | /r/HasProperty | 1.2 to 20 lemmings per acre
Facets:
Source sentences:
text: When populations are low there may be 3 to 50 Norway lemmings per ha (1.2 to 20 lemmings per acre), and when the population is high there may be up to 330 lemmings per ha (134 lemmings per acre).