With no explanation, label each line with "O", "product-food", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Vermouth
manufacturers
keep
their
recipes
for
the
drink
secret
.
Vermouth:product-food
manufacturers:O
keep:O
their:O
recipes:O
for:O
the:O
drink:O
secret:O
.:O