times I won't do the super detailed version here so yeah I guess we'll just kind of look through that real quickly so we've kind of talked right now so far about standard mostly standard language models and kind of using different architectures you know character level aren't ends and 2ls TM or double all those teams and transfer based language models and they're always kind of trained with the standard auto regressive left right or in the case of Elmo adding a backwards right-left language model and you know that's nice