Assertion: porcupine's foot | /r/HasProperty | 4 to 5.5 meters
Facets:
Source sentences:
text: The narwhal averages between 13 to 18 feet (4 to 5.5 meters) in length excluding the males spiral tusk, and weighs 1,760 to 3,530 pounds (800 to 1,600 kg ).