With no explanation, label each line with "O", "location-park", "location-bodiesofwater", "location-GPE", "other-law", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
He
worked
for
the
protection
of
the
Boundary
Waters
,
helped
draft
the
Wilderness
Act
of
1964
,
and
helped
establish
Voyageurs
National
Park
in
northern
Minnesota
.
He:O
worked:O
for:O
the:O
protection:O
of:O
the:O
Boundary:location-bodiesofwater
Waters:location-bodiesofwater
,:O
helped:O
draft:O
the:O
Wilderness:other-law
Act:other-law
of:O
1964:O
,:O
and:O
helped:O
establish:O
Voyageurs:location-park
National:location-park
Park:location-park
in:O
northern:O
Minnesota:location-GPE
.:O