With no explanation, label each line with "O", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Prior
to
his
joining
the
Montreal
Canadiens
,
the
team
suffered
from
a
lack
of
toughness
.
Prior:O
to:O
his:O
joining:O
the:O
Montreal:organization-sportsteam
Canadiens:organization-sportsteam
,:O
the:O
team:O
suffered:O
from:O
a:O
lack:O
of:O
toughness:O
.:O