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
total
dose
of
radiation
is
divided
into
several
smaller
doses
given
over
several
days
.
The:O
total:O
dose:O
of:O
radiation:O
is:O
divided:O
into:O
several:O
smaller:O
doses:O
given:O
over:O
several:O
days:O
.:O