Table 0: Recreational Fee
If:                                     | 0| 1| 2| 3| 4|
'Policy: Special treatment of seniors'  | Y| Y| Y| N| N|
'senior'                                | Y| N| N| -| -|
calculatedprice > 0                     | -| Y| N| Y| N|
Then:                                             
recreational_fee is special(senior)     | X|  |  |  |  |
recreational_fee is regular             |  | X|  | X|  |
recreational_fee is not_determined      |  |  | X|  | X|
# .......

attribute: calculatedprice
summation_of: weekdayprice + weekend_off_price + weekend_peak_price

Proposition: 'Policy: Special treatment of seniors'
Askable_using: "**?" 



Table 1: Senior
If:                                     | 0| 1|
age >= 65                               | Y| N|                          
Then:
'senior'                                | X|  |
# .......  

Attribute: age
Askable_using: "What is the years of age of the recreationist?"



Table 2: weekdayprice
If:                                     | 0| 1| 2| 3|
moment_of_usage is weekday              | Y| Y| Y| N|               
usage_time <  60                        | Y| N| N| -|
usage_time < 120                        | -| Y| N| -|
Then: 
weekdayprice = 2                        | X|  |  |  |
weekdayprice = 3                        |  | X|  |  |
weekdayprice = 5                        |  |  | X|  |
# .......

Attribute: moment_of_usage
Askable_using: "What is the moment of usage?"
Attribute: usage_time
Askable_using: "How long (in minutes)?"

Table 3: weekend_off_price
If:                                     | 0| 1| 2| 3|
moment_of_usage is weekend_off_hours    | Y| Y| Y| N|           
usage_time <  60                        | Y| N| N| -|
usage_time < 120                        | -| Y| N| -|
Then:                                   
weekend_off_price = 3                   | X|  |  |  |
weekend_off_price = 5                   |  | X|  |  |
weekend_off_price = 8                   |  |  | X|  |
# .......


Table 4: weekend_peak_price
If:                                     | 0| 1| 2| 3|
moment_of_usage is weekend_peak_hours   | Y| Y| Y| N|            
usage_time <  60                        | Y| N| N| -|
usage_time < 120                        | -| Y| N| -|
Then:                                   
weekend_peak_price = 8                  | X|  |  |  |
weekend_peak_price = 10                 |  | X|  |  |
weekend_peak_price = 15                 |  |  | X|  |
# .......

GoalAttribute: recreational_fee
Case: special(senior)
Print: "---------------------------------------------------"                   
Print: "No recreational fee because it's a senior."
Print: "---------------------------------------------------"              

Case: regular
Print: "--------------------------------------------------------------"                  
Print: "Recreational_fee is: %s." calculatedprice
Print: "Based on:" 
Print: "Charge for a weekday: %s." weekdayprice
Print: "Charge for a_weekend during off ours: %s." weekend_off_price
Print: "Charge for a_weekend during peak ours: %s." weekend_peak_price
Print: "--------------------------------------------------------------"

Case: not_determined
Print: "---------------------------------------------------"                   
Print: "Recreational_fee could not be determined"
Print: "---------------------------------------------------"