Assertion: salivary gland's secretion | /r/HasProperty | involved in lubricating the oral cavity
Facets:
Source sentences:
text: Mucous: The mucous secretions are involved in lubricating the oral cavity and making food into the slippery bolus.
text: Mucous: The mucous secretions are involved in lubricating the oral cavity and making food into the slippery bolus.