Assertion: echidna's body | /r/CapableOf | weigh 2-7 kg
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Source sentences:
text: Size: The body of an echidna ranges from 35-50 centimeters (13.8-19.7 inches) in length with a tail of 10 cm (3.9 in) and weighs 2-7 kg (4.4-15.4 lbs).