With no explanation, label each line with "location-GPE", "product-airplane", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Aeroflot
Flight
505
crashed
just
after
takeoff
in
Tashkent
on
16
January
1987
.
Aeroflot:product-airplane
Flight:product-airplane
505:product-airplane
crashed:O
just:O
after:O
takeoff:O
in:O
Tashkent:location-GPE
on:O
16:O
January:O
1987:O
.:O