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 ":".
It
has
been
played
annually
since
1995
.
It:O
has:O
been:O
played:O
annually:O
since:O
1995:O
.:O