Assertion: blue whale's heart | /r/CapableOf | weigh 600 kilograms
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Source sentences:
text: Its heart weighs 600 kilograms (1,320 pounds) and is the largest known in any animal.
text: Blue Whale’s heart weighs up to 600 kg.
text: Its heart weighs 600 kilograms (Template:Convert/LoffAonSoff)Template:
text: Its heart weighs 600 kilograms (1,320 pounds) and is the largest known in any animal.
text: Its heart weighs 600 kilograms (1,300 lb) and is the largest known in any animal.