With no explanation, label each line with "building-library", "O", "person-artist/author", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
In
1954
,
Tony
Saletan
had
been
working
as
folksong
leader
at
the
Shaker
Village
Work
Camp
,
and
was
searching
the
Widener
Library
of
Harvard
University
for
material
to
teach
the
Villagers
that
summer
.
In:O
1954:O
,:O
Tony:person-artist/author
Saletan:person-artist/author
had:O
been:O
working:O
as:O
folksong:O
leader:O
at:O
the:O
Shaker:organization-other
Village:organization-other
Work:organization-other
Camp:organization-other
,:O
and:O
was:O
searching:O
the:O
Widener:building-library
Library:building-library
of:building-library
Harvard:building-library
University:building-library
for:O
material:O
to:O
teach:O
the:O
Villagers:O
that:O
summer:O
.:O