Assertion: iridium | /r/HasProperty | discovered at same time
Facets:
value: in 1803
type: TEMPORAL
value: by the british chemist
type: OTHER
Source sentences:
text: Iridium and osmium were discovered at the same time by the British chemist Smithson Tennant in 1803.
text: Iridium and osmium were discovered at the same time by the British chemist Smithson Tennant in 1803.