With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
1
Host
''
and
J.
Edgar
Hoover
sent
a
letter
.
1:O
Host:O
'':O
and:O
J.:person-other
Edgar:person-other
Hoover:person-other
sent:O
a:O
letter:O
.:O