How long before , a few generations or centuries , he added , is not known in the absence of further evidence , but its origins could be contemporaneous with Zapotec writing in Oaxaca , Mexico , or some symbolic systems of the Olmec along the Gulf Coast .
Mexico /location/country/administrative_divisions Oaxaca
Oaxaca /location/administrative_division/country Mexico
Mexico /location/location/contains Oaxaca
WRB RB RB , DT JJ NNS CC NNS , PRP VBD , VBZ RB VBN IN DT NN IN JJ NN , CC PRP$ NNS MD VB JJ IN JJ NN IN NNP , NNP , CC DT JJ NNS IN DT NNP IN DT NNP NNP .
Mexico
LOCATION
Oaxaca
LOCATION
/location/country/administrative_divisions
Oaxaca
LOCATION
Mexico
LOCATION
/location/administrative_division/country
Mexico
LOCATION
Oaxaca
LOCATION
/location/location/contains