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
event
marked
the
end
of
Brahmin
domination
in
the
Tamil
Nadu
Congress
Party
.
This:O
event:O
marked:O
the:O
end:O
of:O
Brahmin:O
domination:O
in:O
the:O
Tamil:organization-politicalparty
Nadu:organization-politicalparty
Congress:organization-politicalparty
Party:organization-politicalparty
.:O