With no explanation, label each line with "O", "organization-government/governmentagency", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
A
public
inquiry
had
been
held
in
September
1961
and
a
further
three
public
inquiries
,
a
Parliamentary
Bill
and
a
High
Court
challenge
had
been
required
before
the
work
started
.
A:O
public:O
inquiry:O
had:O
been:O
held:O
in:O
September:O
1961:O
and:O
a:O
further:O
three:O
public:O
inquiries:O
,:O
a:O
Parliamentary:organization-other
Bill:organization-other
and:O
a:O
High:organization-government/governmentagency
Court:organization-government/governmentagency
challenge:O
had:O
been:O
required:O
before:O
the:O
work:O
started:O
.:O