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
other
two
designated
contract
markets
in
the
CME
Group
are
the
Chicago
Mercantile
Exchange
and
the
Chicago
Board
of
Trade
.
The:O
other:O
two:O
designated:O
contract:O
markets:O
in:O
the:O
CME:organization-company
Group:organization-company
are:O
the:O
Chicago:location-GPE
Mercantile:O
Exchange:O
and:O
the:O
Chicago:location-GPE
Board:O
of:O
Trade:O
.:O