With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Four
bridges
built
in
the
1920s
(
three
before
the
1927
flood
and
one
after
,
are
also
on
the
National
Register
;
three
southeast
of
Marked
Tree
,
and
one
southeast
of
Tyronza
.
Four:O
bridges:O
built:O
in:O
the:O
1920s:O
(:O
three:O
before:O
the:O
1927:O
flood:O
and:O
one:O
after:O
,:O
are:O
also:O
on:O
the:O
National:O
Register:O
;:O
three:O
southeast:location-GPE
of:location-GPE
Marked:location-GPE
Tree:location-GPE
,:O
and:O
one:O
southeast:location-GPE
of:location-GPE
Tyronza:location-GPE
.:O