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 ":".
Judge
Barron
retired
in
2000
.
Judge:person-politician
Barron:person-politician
retired:O
in:O
2000:O
.:O