Assertion: lava | /r/CapableOf | form volcano
Facets:
value: from viscous
type: CAUSE
value: from thick
type: OTHER
Source sentences:
text: The lava forming these volcanoes runs thicker and has a tendency to pile up, creating the iconic conical volcano shape.
text: Obsidian's high silica content makes the lava it forms from highly viscous, or thick.