But is all that happens that you say ‘I see red’? Isn't there something else being the case, happening, when you say this & it is true? But if you ask isn't there something else happening, you don't mean just anything else e.g. that it's raining. So after all you'll have to give descriptions of what it is that happens || you mean is happening & insofar as you give a description of it you must know what it is that happens & it is not a || the x. And keeping it partly unknown doesn't help you either. On the other hand there is no reason why you should always stop with giving a sample & not with giving a word || an expression. (In this sense one can say that an expression acts as a picture) || as much as a picture as a sample).