Assertion: hydrogen | /r/CapableOf | play vital role
Facets:
value: in case of stars
type: OTHER
value: in powering stars
type: LOCATION
Source sentences:
text: Hydrogen plays a vital role in powering stars through the proton-proton reaction in case of stars with very low to approximately 1 mass of the Sun and the CNO cycle of nuclear fusion in case of stars more massive than our Sun.