Voseo
"Vos" is used extensively as the second-person singular in Rioplatense Spanish ( Argentina and Uruguay ) , Eastern Bolivia , Paraguayan Spanish , and Central American Spanish ( El Salvador , Guatemala , Honduras , Nicaragua , Costa Rica , southern parts of Chiapas and some parts of Oaxaca in Mexico ) . 
<triplet> Oaxaca <subj> Mexico <obj> located in the administrative territorial entity <triplet> Mexico <subj> Chiapas <obj> contains administrative territorial entity <subj> Oaxaca <obj> contains administrative territorial entity