∕∕  
 The word lying is taught us in a part way in which it was fastened to a gr certain behaviour to the use of a certain expression under certain circumstances. Then we use it saying that we have been lying when we our have noticed it behaviour was not the one like the one which first constituted the meaning.

   Just in the same way we were taught the word ‘red’ in a game say like No1 & then we use it when the conditions are different (compare the past in the description of a dream) (and of course it isn't just the word ‘red’ we use but the whole imagery connected with it)