Assertion: sea otter's weight | /r/HasProperty | anywhere between 49 to 99 lbs
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Source sentences:
text: With a weight anywhere between 49 to 99 lbs (22 to 45 kg) and a length of 3 ft 3 in to 4 ft 7 in (1 to 1.4 m), the sea otter is actually one of the smallest marine mammals in the world.