With no explanation, label each line with "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
His
main
task
in
the
postwar
period
was
reconstruction
of
the
VGF
factories
that
had
been
partly
destroyed
during
the
war
.
His:O
main:O
task:O
in:O
the:O
postwar:O
period:O
was:O
reconstruction:O
of:O
the:O
VGF:building-other
factories:O
that:O
had:O
been:O
partly:O
destroyed:O
during:O
the:O
war:O
.:O