With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
In
1920
they
arrived
,
and
in
the
same
year
the
last
of
the
seven
manuscript
books
was
found
.
In:O
1920:O
they:O
arrived:O
,:O
and:O
in:O
the:O
same:O
year:O
the:O
last:O
of:O
the:O
seven:O
manuscript:O
books:O
was:O
found:O
.:O