With no explanation, label each line with "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
William
Huskisson
for
King
George
IV
's
approval
.
William:O
Huskisson:O
for:O
King:person-politician
George:person-politician
IV:person-politician
's:O
approval:O
.:O