With no explanation, label each line with "O", "building-airport", "location-mountain", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-hospital" preceded by ":".
Connections
for
Gatwick
Airport
can
be
made
from
this
service
by
changing
at
Redhill
.
Connections:O
for:O
Gatwick:building-airport
Airport:building-airport
can:O
be:O
made:O
from:O
this:O
service:O
by:O
changing:O
at:O
Redhill:location-mountain
.:O