With no explanation, label each line with "O", "building-theater", "person-actor", "art-other", "art-broadcastprogram", "art-film", "art-music", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
1882
the
play
was
staged
by
Alexandrinsky
Theatre
as
a
benefit
for
the
actress
Maria
Savina
who
played
Negina
.
In:O
1882:O
the:O
play:O
was:O
staged:O
by:O
Alexandrinsky:building-theater
Theatre:building-theater
as:O
a:O
benefit:O
for:O
the:O
actress:O
Maria:person-actor
Savina:person-actor
who:O
played:O
Negina:art-other
.:O