With no explanation, label each line with "O", "person-scholar", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
His
son
,
Arthur
Herbert
Copeland
,
Jr
.
,
is
also
a
mathematician
.
His:O
son:O
,:O
Arthur:person-scholar
Herbert:person-scholar
Copeland:person-scholar
,:person-scholar
Jr:person-scholar
.:person-scholar
,:O
is:O
also:O
a:O
mathematician:O
.:O