With no explanation, label each line with "O", "other-astronomything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
IC
4406
,
also
called
the
Retina
Nebula
,
is
a
cylindrical
nebula
at
a
distance
of
5,000
light-years
.
IC:O
4406:O
,:O
also:O
called:O
the:O
Retina:other-astronomything
Nebula:other-astronomything
,:O
is:O
a:O
cylindrical:O
nebula:O
at:O
a:O
distance:O
of:O
5,000:O
light-years:O
.:O