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 ":".
Although
efforts
were
made
the
reconcile
the
two
organizations
,
they
ultimately
were
unable
to
accommodate
each
other
's
demands
.
Although:O
efforts:O
were:O
made:O
the:O
reconcile:O
the:O
two:O
organizations:O
,:O
they:O
ultimately:O
were:O
unable:O
to:O
accommodate:O
each:O
other:O
's:O
demands:O
.:O