With no explanation, label each line with "O", "organization-company", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
However
,
Shanghai
Airlines
announced
on
April
2011
that
the
Crane
Club
will
be
merged
into
China
Eastern
's
Eastern
Miles
Program
.
However:O
,:O
Shanghai:organization-company
Airlines:organization-company
announced:O
on:O
April:O
2011:O
that:O
the:O
Crane:organization-other
Club:organization-other
will:O
be:O
merged:O
into:O
China:organization-other
Eastern:organization-other
's:organization-other
Eastern:organization-other
Miles:organization-other
Program:organization-other
.:O