Assertion: mustard gas | /r/HasProperty | yellow-brown
Facets:
value: usually
type: DEGREE
value: in color
type: OTHER
Source sentences:
text: The sulfur mustards commonly known as mustard gas when used in impure form, such as warfare agents, they are usually yellow-brown in color and have an odor resembling mustard plants, garlic or horseradish, hence the name.