With no explanation, label each line with "O", "product-ship", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
During
1978
,
the
Royal
Navy
received
the
first
BAe
Sea
Harrier
of
an
initial
order
for
24
.
During:O
1978:O
,:O
the:O
Royal:organization-government/governmentagency
Navy:organization-government/governmentagency
received:O
the:O
first:O
BAe:product-ship
Sea:product-ship
Harrier:product-ship
of:O
an:O
initial:O
order:O
for:O
24:O
.:O