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 ":".
The
league
lasted
a
little
over
a
decade
,
dismantling
in
1954
.
The:O
league:O
lasted:O
a:O
little:O
over:O
a:O
decade:O
,:O
dismantling:O
in:O
1954:O
.:O