Assertion: alligator's muscle | /r/HasProperty | special
Facets:
Source sentences:
text: Alligators have these, as well, but they also have special muscles around the lungs that do more than just move air in and out.
text: Alligators, though, have a special muscle that attaches the liver to the hip bones, and this muscle pulls the liver down -- not only allowing the lungs to expand but actually stretching it further back.