Assertion: astatine | /r/HasProperty | involved in earlier false claim
Facets:
Source sentences:
text: He had also been involved in an earlier false claim as to the discovery of element 87 (francium) and this is thought to have caused other researchers to downplay his work.
text: He had also been involved in an earlier false claim as to the discovery of element 87 (francium) and this is thought to have caused other researchers to downplay his work.