With no explanation, label each line with "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
``
,
Leonard
Bernstein
explained
that
the
song
was
composed
in
the
Mixolydian
mode
.
``:O
,:O
Leonard:person-artist/author
Bernstein:person-artist/author
explained:O
that:O
the:O
song:O
was:O
composed:O
in:O
the:O
Mixolydian:O
mode:O
.:O