With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Ivanhoé
Cambridge
maintained
a
20
percent
stake
in
the
property
's
ownership
.
Ivanhoé:organization-company
Cambridge:organization-company
maintained:O
a:O
20:O
percent:O
stake:O
in:O
the:O
property:O
's:O
ownership:O
.:O