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 ":".
The
observatory
is
noted
for
its
discovery
of
the
asteroid
9
Metis
in
1848
as
well
as
a
60,000
item
star
catalogue
of
the
1850s
.
The:O
observatory:O
is:O
noted:O
for:O
its:O
discovery:O
of:O
the:O
asteroid:O
9:O
Metis:other-astronomything
in:O
1848:O
as:O
well:O
as:O
a:O
60,000:O
item:O
star:O
catalogue:O
of:O
the:O
1850s:O
.:O