er there's another book which is similar to the other one in the sense that it made up of some papers by phillips, steel and tants and that has some information about mexicano in it, er and you find that some people er were giving mexican language a low  a low prestige rate whereas other group in the community were doing the opposite and giving a high prestige rate or certainly a less low one, er in favour of spanish a lot of the because it was in i think it's in south america i guess, er you find that a lot of the locals were switching to spanish because it was coming the dominant language er because of societal pressures and constraints and so on.