Assertion: killer whale's length | /r/HasProperty | 15 m
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Source sentences:
text: Based on length, Table I states up to two killer whales may be held in a pool with a minimum horizontal dimension (the diameter of a circular pool of water) of twice that length or 48 feet (15 m) and a minimum depth of 12 feet (3.7 m), giving a minimum volume of 21,700 cubic feet (615 m3) for two killer whales.