With no explanation, label each line with "O", "organization-company", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
US
Attorney
General
sued
Allied
Chemical
to
halt
the
dumping
of
mercury
into
the
lake
.
The:O
US:organization-government/governmentagency
Attorney:organization-government/governmentagency
General:organization-government/governmentagency
sued:O
Allied:organization-company
Chemical:organization-company
to:O
halt:O
the:O
dumping:O
of:O
mercury:O
into:O
the:O
lake:O
.:O