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
legislation
was
enacted
to
assist
in
securing
supplies
of
guano
.
The:O
legislation:O
was:O
enacted:O
to:O
assist:O
in:O
securing:O
supplies:O
of:O
guano:O
.:O