Assertion: lung's organ | /r/HasProperty | complex
Facets:
Source sentences:
text: The lungs are complex organs," says Philip Harber, MD, MPH, professor of public health at the University of Arizona in Tucson.
text: Your lungs are complex organs, but what they do is take a gas that your body needs to get rid of (carbon dioxide) and exchange it for a gas that your body can use (oxygen).