With no explanation, label each line with "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Since
2007
he
has
served
as
the
chairman
of
the
National
Library
of
Israel
board
of
directors
.
Since:O
2007:O
he:O
has:O
served:O
as:O
the:O
chairman:O
of:O
the:O
National:organization-other
Library:organization-other
of:organization-other
Israel:organization-other
board:O
of:O
directors:O
.:O