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 ":".
He
graduated
in
medicine
in
1826
.
He:O
graduated:O
in:O
medicine:O
in:O
1826:O
.:O