Assertion: metallic thorium | /r/HasProperty | isolated for first time
Facets:
value: by dutch entrepreneurs dirk lely jr.
type: OTHER
value: by lodewijk hamburger.[l
type: LOCATION
value: in 1914
type: TEMPORAL
Source sentences:
text: Metallic thorium was isolated for the first time in 1914 by Dutch entrepreneurs Dirk Lely Jr. and Lodewijk Hamburger.[l]