With no explanation, label each line with "O", "organization-politicalparty", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Prior
to
commencing
his
studies
at
Graz
he
became
a
member
of
the
Nazi
Party
.
Prior:O
to:O
commencing:O
his:O
studies:O
at:O
Graz:organization-education
he:O
became:O
a:O
member:O
of:O
the:O
Nazi:organization-politicalparty
Party:organization-politicalparty
.:O