With no explanation, label each line with "O", "product-software", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
2013
video
presentation
can
be
viewed
on
the
school
's
YouTube
page
.
The:O
2013:O
video:O
presentation:O
can:O
be:O
viewed:O
on:O
the:O
school:O
's:O
YouTube:product-software
page:O
.:O