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
was
elected
Chair
in
1990
.
He:O
was:O
elected:O
Chair:O
in:O
1990:O
.:O