With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
COI
,
in
turn
,
filed
a
suit
claiming
that
DEC
's
patent
was
invalid
on
several
grounds
,
including
the
assertions
that
DEC
had
marketed
DECtape-based
equipment
for
over
a
year
before
filing
for
the
patent
,
that
they
had
failed
to
properly
disclose
the
prior
art
,
and
that
the
key
claims
in
the
DEC
patent
were
in
the
public
domain
.
COI:organization-company
,:O
in:O
turn:O
,:O
filed:O
a:O
suit:O
claiming:O
that:O
DEC:organization-company
's:O
patent:O
was:O
invalid:O
on:O
several:O
grounds:O
,:O
including:O
the:O
assertions:O
that:O
DEC:organization-company
had:O
marketed:O
DECtape-based:O
equipment:O
for:O
over:O
a:O
year:O
before:O
filing:O
for:O
the:O
patent:O
,:O
that:O
they:O
had:O
failed:O
to:O
properly:O
disclose:O
the:O
prior:O
art:O
,:O
and:O
that:O
the:O
key:O
claims:O
in:O
the:O
DEC:organization-company
patent:O
were:O
in:O
the:O
public:O
domain:O
.:O