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 ":".
A
Liberal
,
he
was
re-elected
in
1900
.
A:O
Liberal:O
,:O
he:O
was:O
re-elected:O
in:O
1900:O
.:O