With no explanation, label each line with "O", "organization-company", "person-politician", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Rieve
was
labeled
a
communist
,
and
Samuel
Baron
(
the
general
manager
of
the
TWUA
)
resigned
in
protest
from
the
union
.
Rieve:person-politician
was:O
labeled:O
a:O
communist:O
,:O
and:O
Samuel:person-other
Baron:person-other
(:O
the:O
general:O
manager:O
of:O
the:O
TWUA:organization-company
):O
resigned:O
in:O
protest:O
from:O
the:O
union:O
.:O