With no explanation, label each line with "O", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Volleyball
has
been
played
consistently
at
the
Mediterranean
Games
since
the
year
1959
for
men
and
since
the
year
1975
for
women
.
Volleyball:O
has:O
been:O
played:O
consistently:O
at:O
the:O
Mediterranean:event-sportsevent
Games:event-sportsevent
since:O
the:O
year:O
1959:O
for:O
men:O
and:O
since:O
the:O
year:O
1975:O
for:O
women:O
.:O