With no explanation, label each line with "O", "person-scholar", "other-award", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
official
opening
of
the
institute
was
on
October
27
,
1989
,
on
occasion
of
which
a
symposium
was
organized
,
with
Nobel
prize
winner
Hartmut
Michel
giving
a
keynote
lecture
.
The:O
official:O
opening:O
of:O
the:O
institute:O
was:O
on:O
October:O
27:O
,:O
1989:O
,:O
on:O
occasion:O
of:O
which:O
a:O
symposium:O
was:O
organized:O
,:O
with:O
Nobel:other-award
prize:O
winner:O
Hartmut:person-scholar
Michel:person-scholar
giving:O
a:O
keynote:O
lecture:O
.:O