Assertion: bunsen burner | /r/CapableOf | discover rubidium
Facets:
value: during their spectroscopic investigations
type: TEMPORAL
value: by a similar process
type: MANNER
value: the following year
type: TEMPORAL
Source sentences:
text: The following year he discovered rubidium, by a similar process.
text: During their spectroscopic investigations, Bunsen and Kirchhoff discovered cesium and rubidium, and more importantly, made it possible for a more detailed understanding of the composition of the sun, stars, and other celestial bodies to be obtained.