Assertion: neon | /r/HasProperty | discovered by sir william ramsay
Facets:
value: in 1898
type: TEMPORAL
Source sentences:
text: Neon was discovered by Sir William Ramsay, a Scottish chemist, and Morris M. Travers, an English chemist, shortly after their discovery of the element krypton in 1898.
text: Neon is discovered by Sir William Ramsay and Morris M. Travers in 1898.