Assertion: caldera | /r/HasProperty | volcanic feature
Facets:
Source sentences:
text: A caldera is a volcanic feature formed by the collapse of a volcano into itself, making it a large, special form of volcanic crater.
text: A caldera is a volcanic feature formed by the collapse of land surface after a gigantic volcanic eruption.
text: A caldera is a volcanic feature formed by the collapse of land surface after a gigantic volcanic eruption.
text: A caldera is a volcanic feature formed by the collapse of land surface after a gigantic volcanic eruption.
text: A caldera is a volcanic feature formed by the collapse of a volcano into itself, making it a large, special form of volcanic crater.
text: A caldera is a volcanic feature formed by the collapse of a volcano into itself, making it a large, special form of volcanic crater.