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 ":".
Lewis
endorsed
Wendell
Willkie
for
president
just
11
days
before
the
1940
presidential
election
and
threatened
to
resign
as
CIO
president
if
union
members
did
not
follow
him
,
as
happened
.
Lewis:O
endorsed:O
Wendell:person-politician
Willkie:person-politician
for:O
president:O
just:O
11:O
days:O
before:O
the:O
1940:O
presidential:O
election:O
and:O
threatened:O
to:O
resign:O
as:O
CIO:O
president:O
if:O
union:O
members:O
did:O
not:O
follow:O
him:O
,:O
as:O
happened:O
.:O