With no explanation, label each line with "O", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
He
is
also
an
associate
professor
at
Duke-NUS
.
He:O
is:O
also:O
an:O
associate:O
professor:O
at:O
Duke-NUS:organization-education
.:O