With no explanation, label each line with "location-GPE", "O", "building-other", "person-scholar", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
In
1972
,
Sommer
returned
to
the
United
States
and
continued
his
education
at
the
Johns
Hopkins
School
of
Hygiene
and
Public
Health
(
which
became
known
as
the
Johns
Hopkins
Bloomberg
School
of
Public
Health
in
2000
)
.
In:O
1972:O
,:O
Sommer:person-scholar
returned:O
to:O
the:O
United:location-GPE
States:location-GPE
and:O
continued:O
his:O
education:O
at:O
the:O
Johns:building-other
Hopkins:building-other
School:building-other
of:O
Hygiene:building-other
and:building-other
Public:building-other
Health:building-other
(:O
which:O
became:O
known:O
as:O
the:O
Johns:building-other
Hopkins:building-other
Bloomberg:building-other
School:building-other
of:building-other
Public:building-other
Health:building-other
in:O
2000:O
):O
.:O