With no explanation, label each line with "O", "organization-politicalparty", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
left-wing
All
India
Students
Federation
conducted
a
candle
march
at
the
India
Gate
,
and
demanded
``
stringent
action
against
those
behind
the
brutal
attacks
on
the
innocent
students
''
.
The:O
left-wing:O
All:organization-politicalparty
India:organization-politicalparty
Students:organization-politicalparty
Federation:organization-politicalparty
conducted:O
a:O
candle:O
march:O
at:O
the:O
India:location-other
Gate:location-other
,:O
and:O
demanded:O
``:O
stringent:O
action:O
against:O
those:O
behind:O
the:O
brutal:O
attacks:O
on:O
the:O
innocent:O
students:O
'':O
.:O