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 ":".
These
are
collectively
known
as
the
Wealden
Group
and
comprise
the
Purbeck
Group
,
the
Hastings
Beds
,
the
Weald
Clay
,
the
Lower
Greensand
,
the
Gault
and
the
Upper
Greensand
.
These:O
are:O
collectively:O
known:O
as:O
the:O
Wealden:O
Group:O
and:O
comprise:O
the:O
Purbeck:O
Group:O
,:O
the:O
Hastings:O
Beds:O
,:O
the:O
Weald:O
Clay:O
,:O
the:O
Lower:O
Greensand:O
,:O
the:O
Gault:O
and:O
the:O
Upper:O
Greensand:O
.:O