With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
To
allow
a
future
10-minute
headway
,
a
new
signaling
system
was
installed
in
1958
up
to
Ugla
.
To:O
allow:O
a:O
future:O
10-minute:O
headway:O
,:O
a:O
new:O
signaling:O
system:O
was:O
installed:O
in:O
1958:O
up:O
to:O
Ugla:location-GPE
.:O