Assertion: supernova's effect | /r/CapableOf | appear at the surface
Facets:
value: during the first dredge-up
type: TEMPORAL
value: with lower 12c/13c ratios
type: OTHER
Source sentences:
text: The effects of the CNO cycle appear at the surface during the first dredge-up, with lower 12C/13C ratios and altered proportions of carbon and nitrogen.