With no explanation, label each line with "O", "event-other", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
When
Rocha
was
18
,
he
left
his
high
school
band
and
joined
The
Berlin
Project
for
eight
weeks
of
summer
touring
.
When:O
Rocha:person-other
was:O
18:O
,:O
he:O
left:O
his:O
high:O
school:O
band:O
and:O
joined:O
The:O
Berlin:event-other
Project:event-other
for:O
eight:O
weeks:O
of:O
summer:O
touring:O
.:O