With no explanation, label each line with "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
On
22
October
2010
,
a
commemorative
postage
stamp
depicting
the
school
's
main
building
was
released
by
the
Indian
Postal
Service
to
mark
the
occasion
of
the
75th
Founder
's
Day
.
On:O
22:O
October:O
2010:O
,:O
a:O
commemorative:O
postage:O
stamp:O
depicting:O
the:O
school:O
's:O
main:O
building:O
was:O
released:O
by:O
the:O
Indian:organization-other
Postal:organization-other
Service:organization-other
to:O
mark:O
the:O
occasion:O
of:O
the:O
75th:O
Founder:O
's:O
Day:O
.:O