Assertion: american bison's tail | /r/CapableOf | add 30 to 90 cm
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Source sentences:
text: Head-rump lengths at maximum range from 2.8 to 3.5 m (9 ft 2 in to 11 ft 6 in) long and the tail adding 30 to 90 cm (1 ft 0 in to 2 ft 11 in).