With no explanation, label each line with "O", "organization-company", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
By
March
2017
,
ArcelorMittal
was
leading
a
consortium
bidding
for
Ilva
.
By:O
March:O
2017:O
,:O
ArcelorMittal:person-other
was:O
leading:O
a:O
consortium:O
bidding:O
for:O
Ilva:organization-company
.:O