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 ":".
Due
to
the
meanderings
of
the
river
,
all
the
other
crossings
are
east—west
.
Due:O
to:O
the:O
meanderings:O
of:O
the:O
river:O
,:O
all:O
the:O
other:O
crossings:O
are:O
east—west:O
.:O