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
pancake
sorting
problem
(
obtaining
the
pancake
number
)
and
obtaining
the
diameter
of
the
pancake
graph
are
equivalents
.
The:O
pancake:O
sorting:O
problem:O
(:O
obtaining:O
the:O
pancake:O
number:O
):O
and:O
obtaining:O
the:O
diameter:O
of:O
the:O
pancake:O
graph:O
are:O
equivalents:O
.:O