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 ":".
His
parents
had
also
conceived
him
there
,
so
he
was
forbidden
from
sleeping
in
closed
rooms
.
His:O
parents:O
had:O
also:O
conceived:O
him:O
there:O
,:O
so:O
he:O
was:O
forbidden:O
from:O
sleeping:O
in:O
closed:O
rooms:O
.:O