Assertion: magma's gas | /r/HasProperty | released by volcano
Facets:
Source sentences:
text: Another way to measure gases released by a volcano is to collect fresh ash samples (before it rains) and pour distilled water through the ash.
text: That is because while an eruption is taking place gases are released by the volcano.
text: Gases from Kilauea provides a comparison of a man-made sulfur dioxide gas leaked at a refinery to the gas released by a volcano.