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 ":".
The
current
school
building
came
into
existence
in
1999
.
The:O
current:O
school:O
building:O
came:O
into:O
existence:O
in:O
1999:O
.:O