With no explanation, label each line with "O", "building-theater", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
After
studying
at
the
Max
Reinhardt
Seminar
,
he
debuted
at
the
Burgtheater
at
the
age
of
18
.
After:O
studying:O
at:O
the:O
Max:organization-education
Reinhardt:organization-education
Seminar:organization-education
,:O
he:O
debuted:O
at:O
the:O
Burgtheater:building-theater
at:O
the:O
age:O
of:O
18:O
.:O