With no explanation, label each line with "location-GPE", "O", "other-astronomything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Centaurus
is
an
example
of
modern
architecture
under
construction
in
Islamabad
.
The:O
Centaurus:other-astronomything
is:O
an:O
example:O
of:O
modern:O
architecture:O
under:O
construction:O
in:O
Islamabad:location-GPE
.:O