With no explanation, label each line with "person-politician", "O", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
On
23
February
,
the
French
Revolution
of
1848
broke
out
against
Louis
Philippe
.
On:O
23:O
February:O
,:O
the:O
French:event-attack/battle/war/militaryconflict
Revolution:event-attack/battle/war/militaryconflict
of:O
1848:O
broke:O
out:O
against:O
Louis:person-politician
Philippe:person-politician
.:O