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 ":".
In
September
2017
,
Morena
named
Escandón
its
head
of
organization
in
Chiapas
,
a
precursor
to
his
official
naming
as
the
gubernatorial
candidate
in
January
.
In:O
September:O
2017:O
,:O
Morena:person-politician
named:O
Escandón:person-politician
its:O
head:O
of:O
organization:O
in:O
Chiapas:location-GPE
,:O
a:O
precursor:O
to:O
his:O
official:O
naming:O
as:O
the:O
gubernatorial:O
candidate:O
in:O
January:O
.:O