With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Michael
D.
Lockshin
,
M.D
.
,
is
an
American
professor
and
medical
researcher
.
Michael:person-other
D.:person-other
Lockshin:person-other
,:O
M.D:person-other
.:person-other
,:O
is:O
an:O
American:location-GPE
professor:O
and:O
medical:O
researcher:O
.:O