With no explanation, label each line with "O", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
He
graduated
from
University
of
Buenos
Aires
in
Economy
.
He:O
graduated:O
from:O
University:organization-education
of:organization-education
Buenos:organization-education
Aires:organization-education
in:O
Economy:O
.:O