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 ":".
After
the
season
,
head
coach
Tracy
Smith
After:O
the:O
season:O
,:O
head:O
coach:O
Tracy:O
Smith:O