With no explanation, label each line with "location-GPE", "O", "other-astronomything", "person-scholar", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Messier
72
(
also
known
as
M72
or
NGC
6981
)
is
a
globular
cluster
in
the
Aquarius
constellation
discovered
by
French
astronomer
Pierre
Méchain
on
August
29
,
1780
.
Messier:other-astronomything
72:other-astronomything
(:O
also:O
known:O
as:O
M72:other-astronomything
or:O
NGC:other-astronomything
6981:other-astronomything
):O
is:O
a:O
globular:O
cluster:O
in:O
the:O
Aquarius:other-astronomything
constellation:O
discovered:O
by:O
French:location-GPE
astronomer:O
Pierre:person-scholar
Méchain:person-scholar
on:O
August:O
29:O
,:O
1780:O
.:O