With no explanation, label each line with "person-soldier", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Model
was
also
skeptical
of
the
plan
's
chances
,
pointing
out
that
Konstantin
Rokossovsky
's
Central
Front
was
strongly
dug
in
and
outnumbered
him
two
to
one
in
men
,
tanks
and
artillery
.
Model:person-soldier
was:O
also:O
skeptical:O
of:O
the:O
plan:O
's:O
chances:O
,:O
pointing:O
out:O
that:O
Konstantin:O
Rokossovsky:O
's:O
Central:O
Front:O
was:O
strongly:O
dug:O
in:O
and:O
outnumbered:O
him:O
two:O
to:O
one:O
in:O
men:O
,:O
tanks:O
and:O
artillery:O
.:O