  In the language case, the Bayesian can hope to draw on a good deal of what contemporary linguists have already achieved in understanding the structures underlying sentence comprehension, and some computational linguists are beginning to merge such analyses with probability theory (for instance, Chater &amp; Manning 2006). But even here, the problem of finding the best structure to assign to an input is daunting. As Chater et al. 2006 puts it: