With no explanation, label each line with "location-GPE", "O", "product-food", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Ovomaltine
was
exported
to
Britain
in
1909
.
Ovomaltine:product-food
was:O
exported:O
to:O
Britain:location-GPE
in:O
1909:O
.:O