With no explanation, label each line with "location-GPE", "O", "building-hospital", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
He
worked
as
a
surgeon
at
St
Vincent
's
Hospital
,
Melbourne
from
1905
to
1920
.
He:O
worked:O
as:O
a:O
surgeon:O
at:O
St:building-hospital
Vincent:building-hospital
's:building-hospital
Hospital:building-hospital
,:O
Melbourne:location-GPE
from:O
1905:O
to:O
1920:O
.:O