With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Gimbel
initially
proposed
this
technique
in
1991
.
Gimbel:person-other
initially:O
proposed:O
this:O
technique:O
in:O
1991:O
.:O