With no explanation, label each line with "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
His
son
Ramiro
Calì
was
also
a
painter
.
His:O
son:O
Ramiro:person-artist/author
Calì:person-artist/author
was:O
also:O
a:O
painter:O
.:O