With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Martinair
became
all
jet-powered
in
1971
.
Martinair:organization-company
became:O
all:O
jet-powered:O
in:O
1971:O
.:O