Assertion: duck | /r/HasAspect | rows of thin bristles
Facets:
value: in their mouths
type: LOCATION
Source sentences:
text: Instead, they have rows of thin bristles in their mouths that help them filter nutrient particles out of the water that passes through their breaks.
text: Ducks have rows of thin bristles in their mouths that enable them to filer nutrient particles out of the water.