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 ":".
So
I
guess
we
sort
of
decided
to
make
it
like
a
death
march
.
So:O
I:O
guess:O
we:O
sort:O
of:O
decided:O
to:O
make:O
it:O
like:O
a:O
death:O
march:O
.:O