With no explanation, label each line with "location-GPE", "O", "organization-other", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
He
then
studied
at
the
Lick
Observatory
in
California
and
received
a
PhD
from
the
University
of
California
,
Berkeley
in
1930
.
He:O
then:O
studied:O
at:O
the:O
Lick:organization-other
Observatory:organization-other
in:O
California:location-GPE
and:O
received:O
a:O
PhD:O
from:O
the:O
University:organization-education
of:organization-education
California:organization-education
,:O
Berkeley:location-GPE
in:O
1930:O
.:O