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 ":".
Rayburn
was
a
protege
of
then-Representative
John
Nance
Garner
.
Rayburn:person-politician
was:O
a:O
protege:O
of:O
then-Representative:O
John:person-politician
Nance:person-politician
Garner:person-politician
.:O