With no explanation, label each line with "O", "person-politician", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Among
Friedman
's
notable
cases
is
the
continuing
supervision
of
John
Hinckley
Jr
.
,
the
would-be
assassin
of
President
Ronald
Reagan
.
Among:O
Friedman:person-other
's:O
notable:O
cases:O
is:O
the:O
continuing:O
supervision:O
of:O
John:person-other
Hinckley:person-other
Jr:person-other
.:O
,:O
the:O
would-be:O
assassin:O
of:O
President:O
Ronald:person-politician
Reagan:person-politician
.:O