With no explanation, label each line with "location-GPE", "O", "location-bodiesofwater", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
primary
problem
was
the
disposition
of
the
``
Industrial
Triangle
``
east
of
the
Oder
river
,
whose
triangle
ends
were
marked
by
the
cities
of
Beuthen
(
Bytom
)
,
Gleiwitz
(
Gliwice
)
and
Kattowitz
(
Katowice
)
,
all
three
of
which
were
mostly
inhabited
by
ethnic
Germans
.
The:O
primary:O
problem:O
was:O
the:O
disposition:O
of:O
the:O
``:O
Industrial:location-other
Triangle:location-other
``:O
east:O
of:O
the:O
Oder:location-bodiesofwater
river:location-bodiesofwater
,:O
whose:O
triangle:O
ends:O
were:O
marked:O
by:O
the:O
cities:O
of:O
Beuthen:location-GPE
(:O
Bytom:location-GPE
):O
,:O
Gleiwitz:location-GPE
(:O
Gliwice:location-GPE
):O
and:O
Kattowitz:location-GPE
(:O
Katowice:location-GPE
):O
,:O
all:O
three:O
of:O
which:O
were:O
mostly:O
inhabited:O
by:O
ethnic:O
Germans:O
.:O