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 ":".
The
original
battlefield
was
preserved
for
years
as
a
county
park
in
Monroe
,
Michigan
.
The:O
original:O
battlefield:O
was:O
preserved:O
for:O
years:O
as:O
a:O
county:O
park:O
in:O
Monroe:location-GPE
,:O
Michigan:location-GPE
.:O