With no explanation, label each line with "location-GPE", "O", "product-weapon", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Fifty-five
GBU-28
's
were
delivered
to
Israel
in
2009
.
Fifty-five:O
GBU-28:product-weapon
's:O
were:O
delivered:O
to:O
Israel:location-GPE
in:O
2009:O
.:O