Assertion: badger's den | /r/HasAspect | 1/2 a mile of tunnels
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Source sentences:
text: Although a solitary animal in much of its range, the European badgers of Britain and some other territories are the most social of the badger species and live in groups of 5 to 20 individuals in enormous dens that may have up to thirty different chambers and 1/2 a mile of tunnels.