With no explanation, label each line with "product-airplane", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
During
1986
,
Monarch
acquired
their
first
Boeing
737-300
airliner
.
During:O
1986:O
,:O
Monarch:organization-company
acquired:O
their:O
first:O
Boeing:product-airplane
737-300:product-airplane
airliner:O
.:O