With no explanation, label each line with "building-other", "O", "location-island", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
bridge
to
Spree
Island
was
rebuilt
in
a
simple
form
in
1949/50
and
equally
named
Liebknecht
Bridge
.
The:O
bridge:O
to:O
Spree:location-island
Island:location-island
was:O
rebuilt:O
in:O
a:O
simple:O
form:O
in:O
1949/50:O
and:O
equally:O
named:O
Liebknecht:building-other
Bridge:building-other
.:O