Assertion: salamander's gill | /r/ObjectUse | used for respiration
Facets:
Source sentences:
text: External gills are used for respiration, although buccal pumping (gulping air from the surface) may also be used to provide oxygen to their lungs.[citation needed]
text: Gills are used for respiration, although the animals sometimes gulp surface air for supplemental oxygen.
text: External gills are used for respiration, although buccal pumping (gulping air from the surface) may also be used to provide oxygen to their lungs.