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
rocks
of
the
shield
are
overlain
by
sandstones
and
conglomerates
of
the
Vaupes
Formation
of
Lower
Paleozoic
to
the
lower
Oligocene
age
.
The:O
rocks:O
of:O
the:O
shield:O
are:O
overlain:O
by:O
sandstones:O
and:O
conglomerates:O
of:O
the:O
Vaupes:O
Formation:O
of:O
Lower:O
Paleozoic:O
to:O
the:O
lower:O
Oligocene:O
age:O
.:O