I think there's also the question of inferring the included name space and possibility space from the questions asked.

If he asks you about html color #FF0000 (which is red) after asking you about red, do you change your probability? Assuming he's using 12 color words because he used 'red' is arbitrary.

Even with defined and distinct color terms, the question is, what of those colors are actual possibilities (colors in the jar) as opposed to logical possibilities (colors omega can name)

and I think THAT ties back to Elizer's article about Job vs. Frodo.