Assertion: volcano's vent | /r/HasProperty | opening
Facets:
value: in the crust
type: LOCATION
value: within the crater of a volcano
type: LOCATION
Source sentences:
text: Volcanic vents are openings in the Earth's crust from which lava and pyroclastic flows are ejected.
text: Brief explanation: Volcanic vents are openings in the crust, usually within the crater of a volcano,