With no explanation, label each line with "O", "organization-politicalparty", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
At
the
time
of
the
by-election
,
a
swing
of
7
%
in
a
general
election
would
have
seen
the
Conservatives
gain
an
overall
majority
over
Labour
.
At:O
the:O
time:O
of:O
the:O
by-election:O
,:O
a:O
swing:O
of:O
7:O
%:O
in:O
a:O
general:O
election:O
would:O
have:O
seen:O
the:O
Conservatives:organization-politicalparty
gain:O
an:O
overall:O
majority:O
over:O
Labour:organization-politicalparty
.:O