With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Amundsen
and
Omdal
's
aircraft
was
damaged
and
they
abandoned
the
journey
.
Amundsen:person-other
and:O
Omdal:person-other
's:O
aircraft:O
was:O
damaged:O
and:O
they:O
abandoned:O
the:O
journey:O
.:O