Assertion: bronchus's length | /r/HasProperty | mean
Facets:
Source sentences:
text: The right main bronchus is wider, shorter, and more vertical than the left main bronchus, its mean length is 1.09 cm.
text: The right main bronchus is wider, shorter, and more vertical than the left main bronchus,  its mean length is 1.09 cm.  
text: The right main bronchus is wider, shorter, and more vertical than the left main bronchus, its mean length is 1.09 cm.