With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
goal
was
to
improve
the
stability
of
those
currencies
,
as
well
as
to
gain
an
evaluation
mechanism
for
potential
eurozone
members
.
The:O
goal:O
was:O
to:O
improve:O
the:O
stability:O
of:O
those:O
currencies:O
,:O
as:O
well:O
as:O
to:O
gain:O
an:O
evaluation:O
mechanism:O
for:O
potential:O
eurozone:O
members:O
.:O