With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
result
was
that
workers
tried
to
do
any
work
but
flint
grinding
.
The:O
result:O
was:O
that:O
workers:O
tried:O
to:O
do:O
any:O
work:O
but:O
flint:O
grinding:O
.:O