With no explanation, label each line with "location-GPE", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
General
Contractor
is
M.
A.
Mortenson
Company
of
Brookfield
,
Wisconsin
.
The:O
General:O
Contractor:O
is:O
M.:organization-company
A.:organization-company
Mortenson:organization-company
Company:organization-company
of:O
Brookfield:location-GPE
,:O
Wisconsin:location-GPE
.:O