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 ":".
Friesens
is
Canada
's
largest
printer
of
hardcover
books
.
Friesens:organization-company
is:O
Canada:location-GPE
's:O
largest:O
printer:O
of:O
hardcover:O
books:O
.:O