Assertion: gray | /r/HasProperty | the first
Facets:
value: undoubtedly
type: DEGREE
Source sentences:
text: The Patent Office determined, "while Gray was undoubtedly the first to conceive of and disclose the [variable resistance] invention, as in his caveat of February 14, 1876, his failure to take any action amounting to completion until others had demonstrated the utility of the invention deprives him of the right to have it considered.