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 ":".
However
,
Casimir
was
committing
bigamy
as
was
still
legally
married
to
his
second
wife
(
it
is
unknown
whether
Christina
was
still
alive
at
the
time
)
.
However:O
,:O
Casimir:person-other
was:O
committing:O
bigamy:O
as:O
was:O
still:O
legally:O
married:O
to:O
his:O
second:O
wife:O
(:O
it:O
is:O
unknown:O
whether:O
Christina:person-other
was:O
still:O
alive:O
at:O
the:O
time:O
):O
.:O