With no explanation, label each line with "location-GPE", "O", "event-other", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
As
Ambassador
to
Laos
during
Project
404
,
and
he
also
personally
directed
the
bombing
of
the
Ho
Chi
Minh
trail
.
As:O
Ambassador:O
to:O
Laos:location-GPE
during:O
Project:event-other
404:event-other
,:O
and:O
he:O
also:O
personally:O
directed:O
the:O
bombing:O
of:O
the:O
Ho:person-politician
Chi:person-politician
Minh:person-politician
trail:O
.:O