rrent Situation                     |
|                                                           |
|  A_1  =  Air Warm                     A_2  =  Air Cool    |
|  B_1  =  Balmy Day                    B_2  =  Bodes Rain  |
|  C_1  =  Clear Sky                    C_2  =  Cloudy Sky  |
|                                                           |
o-----------------------------------------------------------o
Figure 1.  Dewey's &quot;Sign of Rain&quot; Example

Here, the agent has an initial expectation of fai