With no explanation, label each line with "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Until
this
time
,
Bastien-Thiry
had
been
a
Gaullist
;
now
he
became
an
opponent
.
Until:O
this:O
time:O
,:O
Bastien-Thiry:person-politician
had:O
been:O
a:O
Gaullist:O
;:O
now:O
he:O
became:O
an:O
opponent:O
.:O