With no explanation, label each line with "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
was
followed
up
by
the
arrival
of
Gondwana
.
This:O
was:O
followed:O
up:O
by:O
the:O
arrival:O
of:O
Gondwana:location-other
.:O