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
degree
usually
involves
considerable
research
,
either
through
a
thesis
or
supervised
research
projects
.
The:O
degree:O
usually:O
involves:O
considerable:O
research:O
,:O
either:O
through:O
a:O
thesis:O
or:O
supervised:O
research:O
projects:O
.:O