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 ":".
Some
later
lawsuits
were
dismissed
because
of
laches
.
Some:O
later:O
lawsuits:O
were:O
dismissed:O
because:O
of:O
laches:O
.:O