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 ":".
Due
to
the
destruction
of
most
of
the
ancient
city
during
the
1917
revolution
and
,
later
,
the
1966
earthquake
,
little
remains
of
Tashkent
's
traditional
architectural
heritage
.
Due:O
to:O
the:O
destruction:O
of:O
most:O
of:O
the:O
ancient:O
city:O
during:O
the:O
1917:O
revolution:O
and:O
,:O
later:O
,:O
the:O
1966:O
earthquake:O
,:O
little:O
remains:O
of:O
Tashkent:location-GPE
's:O
traditional:O
architectural:O
heritage:O
.:O