With no explanation, label each line with "location-GPE", "O", "location-island", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
En-route
stops
were
made
at
Perth
,
Cocos
Islands
and
Mauritius
.
En-route:O
stops:O
were:O
made:O
at:O
Perth:location-GPE
,:O
Cocos:location-island
Islands:location-island
and:O
Mauritius:location-GPE
.:O