With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
As
of
2005
,
the
bridge
opened
for
river
traffic
an
average
of
35
times
a
month
.
As:O
of:O
2005:O
,:O
the:O
bridge:O
opened:O
for:O
river:O
traffic:O
an:O
average:O
of:O
35:O
times:O
a:O
month:O
.:O