With no explanation, label each line with "O", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
90
BC
,
during
the
Social
War
,
Curio
was
a
tribune
of
the
plebs
.
In:O
90:O
BC:O
,:O
during:O
the:O
Social:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
,:O
Curio:O
was:O
a:O
tribune:O
of:O
the:O
plebs:O
.:O