With no explanation, label each line with "O", "other-currency", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Hildebrand
is
considered
a
driving
force
behind
the
pegging
of
the
Swiss
Franc
to
the
Euro
announced
on
6
September
2011
.
Hildebrand:person-other
is:O
considered:O
a:O
driving:O
force:O
behind:O
the:O
pegging:O
of:O
the:O
Swiss:other-currency
Franc:other-currency
to:O
the:O
Euro:other-currency
announced:O
on:O
6:O
September:O
2011:O
.:O