With no explanation, label each line with "art-music", "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Nocturne
in
C
minor
has
been
categorized
as
one
of
Chopin
's
greatest
emotional
achievements
.
The:O
Nocturne:art-music
in:art-music
C:art-music
minor:art-music
has:O
been:O
categorized:O
as:O
one:O
of:O
Chopin:person-artist/author
's:O
greatest:O
emotional:O
achievements:O
.:O