Assertion: tabun | /r/HasProperty | odorless
Facets:
value: except can also range in color
type: OTHER
value: in the mid-1930s
type: TEMPORAL
value: as a vapor
type: MANNER
Source sentences:
text: Tabun, invented by a German chemist, Gerhard Schrader, in the mid-1930s, is colorless or brownish as a liquid, and odorless as a vapor.
text: TABUN, SARIN, SOMAN and VX are odorless and colorless, except that TABUN can also range in color to brown.