With no explanation, label each line with "O", "organization-company", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
John
Larsen
purchased
the
company
in
1975
and
renamed
it
Port
of
Subs
after
holding
a
community-wide
contest
for
its
new
name
.
John:person-other
Larsen:person-other
purchased:O
the:O
company:O
in:O
1975:O
and:O
renamed:O
it:O
Port:organization-company
of:organization-company
Subs:organization-company
after:O
holding:O
a:O
community-wide:O
contest:O
for:O
its:O
new:O
name:O
.:O