Assertion: turtle's shell | /r/HasProperty | hinged at the bottom
Facets:
Source sentences:
text: The box turtle can be recognized by its domed shell, which is hinged at the bottom, making it possible for the turtle to close its shell tightly to keep predators out.
text: They are largely characterized by having a domed shell which is hinged at the bottom, allowing the animal to retract its head and legs and close its shell tightly to protect itself from predators.