With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
He
worked
to
secure
government
income
from
Norwegian
oil
discoveries
.
He:O
worked:O
to:O
secure:O
government:O
income:O
from:O
Norwegian:location-GPE
oil:O
discoveries:O
.:O