With no explanation, label each line with "O", "organization-politicalparty", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
However
,
Klein
remained
premier
until
the
new
PC
Leader
,
Ed
Stelmach
,
assumed
office
on
December
14
,
2006
.
However:O
,:O
Klein:person-politician
remained:O
premier:O
until:O
the:O
new:O
PC:organization-politicalparty
Leader:O
,:O
Ed:person-politician
Stelmach:person-politician
,:O
assumed:O
office:O
on:O
December:O
14:O
,:O
2006:O
.:O