With no explanation, label each line with "O", "organization-politicalparty", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Natesan
resigned
from
the
government
on
19
January
1956
and
,
like
many
Tamil
UNP
politicians
,
left
the
UNP
over
its
support
of
the
Sinhala
Only
policy
.
Natesan:person-politician
resigned:O
from:O
the:O
government:O
on:O
19:O
January:O
1956:O
and:O
,:O
like:O
many:O
Tamil:organization-politicalparty
UNP:organization-politicalparty
politicians:O
,:O
left:O
the:O
UNP:organization-politicalparty
over:O
its:O
support:O
of:O
the:O
Sinhala:O
Only:O
policy:O
.:O