With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
His
continued
work
in
medicine
and
journalism
allowed
him
to
participate
in
national
and
international
conferences
on
psychiatry
and/or
communication
as
a
guest
speaker
.
His:O
continued:O
work:O
in:O
medicine:O
and:O
journalism:O
allowed:O
him:O
to:O
participate:O
in:O
national:O
and:O
international:O
conferences:O
on:O
psychiatry:O
and/or:O
communication:O
as:O
a:O
guest:O
speaker:O
.:O