With no explanation, label each line with "event-attack/battle/war/militaryconflict", "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
1990
and
1991
,
AIA
flew
600
missions
in
support
of
Operations
Desert
Shield
and
Desert
Storm
.
In:O
1990:O
and:O
1991:O
,:O
AIA:organization-other
flew:O
600:O
missions:O
in:O
support:O
of:O
Operations:event-attack/battle/war/militaryconflict
Desert:event-attack/battle/war/militaryconflict
Shield:event-attack/battle/war/militaryconflict
and:O
Desert:event-attack/battle/war/militaryconflict
Storm:event-attack/battle/war/militaryconflict
.:O