With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
is
named
for
naturalist
John
James
Audubon
,
who
purchased
20
acres
of
land
there
in
1841
,
at
a
time
when
the
area
was
still
mostly
farms
,
woodland
and
the
country
estates
of
the
rich
.
It:O
is:O
named:O
for:O
naturalist:O
John:person-other
James:person-other
Audubon:person-other
,:O
who:O
purchased:O
20:O
acres:O
of:O
land:O
there:O
in:O
1841:O
,:O
at:O
a:O
time:O
when:O
the:O
area:O
was:O
still:O
mostly:O
farms:O
,:O
woodland:O
and:O
the:O
country:O
estates:O
of:O
the:O
rich:O
.:O