Assertion: box turtle's plastron | /r/HasProperty | bright yellow
Facets:
value: usually
type: DEGREE
value: often
type: TEMPORAL
Source sentences:
text: Its head has a yellowish color and the plastron is often a bright yellow.
text: The shell and neck of a juvenile matamata turtle is a dark brown to mahogany, while the plastron (or underside of the shell) is usually a bright salmon color.