Assertion: melanin's group | /r/CapableOf | examine the effects of mustard gas
Facets:
value: in the early 1900s
type: TEMPORAL
Source sentences:
text: Cutaneous irritation in different racial groups Examining the effects of mustard gas in the early 1900s Marshall et al.  demonstrated that fewer black men (15%) developed erythematous reactions compared with white subjects (58.6%).