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 ":".
I
want
to
tell
them
to
be
positive
about
life
.
I:O
want:O
to:O
tell:O
them:O
to:O
be:O
positive:O
about:O
life:O
.:O