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 ":".
Gravesham
Borough
F.C
.
Gravesham:O
Borough:O
F.C:O
.:O