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 ":".
The
realistic
school
of
fiction
can
be
said
to
have
begun
with
Ivan
Turgenev
.
The:O
realistic:O
school:O
of:O
fiction:O
can:O
be:O
said:O
to:O
have:O
begun:O
with:O
Ivan:person-artist/author
Turgenev:person-artist/author
.:O