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 ":".
The
first
internal
challenge
to
merger
with
the
Federation
of
Malaya
came
from
and
grew
out
of
a
political
struggle
between
the
People
's
Action
Party
(
PAP
)
and
their
opponents
included
the
Barisan
Sosialis
(
Socialist
Front
)
,
the
Liberal-Socialist
Party
,
the
Workers
'
Party
,
the
United
People
's
Party
and
the
Partai
Rakyat
(
People
's
Party
)
.
The:O
first:O
internal:O
challenge:O
to:O
merger:O
with:O
the:O
Federation:organization-politicalparty
of:organization-politicalparty
Malaya:organization-politicalparty
came:O
from:O
and:O
grew:O
out:O
of:O
a:O
political:O
struggle:O
between:O
the:O
People:organization-politicalparty
's:organization-politicalparty
Action:organization-politicalparty
Party:organization-politicalparty
(:organization-politicalparty
PAP:organization-politicalparty
):O
and:O
their:O
opponents:O
included:O
the:O
Barisan:organization-politicalparty
Sosialis:organization-politicalparty
(:O
Socialist:organization-politicalparty
Front:organization-politicalparty
):O
,:O
the:O
Liberal-Socialist:organization-politicalparty
Party:organization-politicalparty
,:O
the:O
Workers:organization-politicalparty
':organization-politicalparty
Party:organization-politicalparty
,:O
the:O
United:organization-politicalparty
People:organization-politicalparty
's:organization-politicalparty
Party:organization-politicalparty
and:O
the:O
Partai:organization-politicalparty
Rakyat:organization-politicalparty
(:organization-politicalparty
People:organization-politicalparty
's:organization-politicalparty
Party:organization-politicalparty
):O
.:O