The heat caused volcanoes to erupt on the earth, and they released gases.
(they; released; gases) (The heat; caused; volcanoes to erupt on the earth) Context(The heat caused,List([0, 15))):(volcanoes; to erupt; L:on the earth)
The heat caused,List([0, 15))
they The heat volcanoes
released caused to erupt
gases
volcanoes to erupt on the earth
L:on the earth