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 ":".
Regan
left
the
band
in
2011
.
Regan:O
left:O
the:O
band:O
in:O
2011:O
.:O