With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Only
Daverio
,
the
33-year-old
engineer
from
Varese
,
had
arrived
.
Only:O
Daverio:person-other
,:O
the:O
33-year-old:O
engineer:O
from:O
Varese:location-GPE
,:O
had:O
arrived:O
.:O