With no explanation, label each line with "O", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Additional
studies
have
suggested
a
function
for
PTPkappa
during
nervous
system
development
.
Additional:O
studies:O
have:O
suggested:O
a:O
function:O
for:O
PTPkappa:other-biologything
during:O
nervous:O
system:O
development:O
.:O