With no explanation, label each line with "location-GPE", "O", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
He
has
twice
been
a
visiting
artist/scholar
at
the
American
Academy
in
Rome
.
He:O
has:O
twice:O
been:O
a:O
visiting:O
artist/scholar:O
at:O
the:O
American:organization-education
Academy:organization-education
in:O
Rome:location-GPE
.:O