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 ":".
The
Thinker
uses
Porter
's
likeness
to
guide
the
way
for
Sigma
,
and
at
the
end
of
the
storyline
,
Sigma
is
returned
to
his
original
form
as
Porter
.
The:O
Thinker:O
uses:O
Porter:person-other
's:O
likeness:O
to:O
guide:O
the:O
way:O
for:O
Sigma:person-other
,:O
and:O
at:O
the:O
end:O
of:O
the:O
storyline:O
,:O
Sigma:person-other
is:O
returned:O
to:O
his:O
original:O
form:O
as:O
Porter:person-other
.:O