With no explanation, label each line with "location-GPE", "O", "event-disaster", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
When
Hurricane
Hugo
struck
Charleston
,
SC
in
1989
,
Dan
was
the
last
broadcaster
to
remain
on
the
air
covering
the
events
.
When:O
Hurricane:event-disaster
Hugo:event-disaster
struck:O
Charleston:location-GPE
,:O
SC:location-GPE
in:O
1989:O
,:O
Dan:person-other
was:O
the:O
last:O
broadcaster:O
to:O
remain:O
on:O
the:O
air:O
covering:O
the:O
events:O
.:O