With no explanation, label each line with "location-GPE", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Qinzong
's
brother
Zhao
Gou
managed
to
escape
to
southern
China
,
where
he
reestablished
the
empire
as
the
Southern
Song
dynasty
and
became
historically
known
as
Emperor
Gaozong
.
Qinzong:person-politician
's:O
brother:O
Zhao:person-politician
Gou:person-politician
managed:O
to:O
escape:O
to:O
southern:O
China:location-GPE
,:O
where:O
he:O
reestablished:O
the:O
empire:O
as:O
the:O
Southern:O
Song:O
dynasty:O
and:O
became:O
historically:O
known:O
as:O
Emperor:person-politician
Gaozong:person-politician
.:O