With no explanation, label each line with "O", "organization-politicalparty", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
youth
organization
was
a
member
of
the
World
Federation
of
Democratic
Youth
.
This:O
youth:O
organization:O
was:O
a:O
member:O
of:O
the:O
World:organization-politicalparty
Federation:organization-politicalparty
of:organization-politicalparty
Democratic:organization-politicalparty
Youth:organization-politicalparty
.:O