Assertion: mustard gas | /r/ObjectUse | used in neighbouring syria
Facets:
value: last year
type: TEMPORAL
Source sentences:
text: The OPCW already concluded in October that mustard gas was used last year in neighbouring Syria.
text: The OPCW also concluded in October that mustard gas had been used in neighboring Syria last year.
text: The OPCW already concluded in October that mustard gas was used in 2015 in neighbouring Syria.