A Simple Categoriser
   - How might you categorise?
 
   - The simplest thing is just to cache away each instance.
 
   - How well does this generalise?
 
   - Can we test for generalisability?
 
   - Sure, use an N-Fold test.
 
   - Can we make up something that's simpler than storing 16 examples?
 
   - Will this make it more general?
 
   - Train
| Colour | Size | Act | Age | Category/Inflated | 
| YELLOW | SMALL | STRETCH | ADULT | T | 
| YELLOW | SMALL | DIP | ADULT | F | 
| YELLOW | LARGE | STRETCH | ADULT | T | 
| YELLOW | LARGE | STRETCH | CHILD | F | 
| YELLOW | LARGE | DIP | CHILD | F | 
| PURPLE | SMALL | STRETCH | ADULT | T | 
| PURPLE | SMALL | DIP | ADULT | F | 
| PURPLE | LARGE | STRETCH | ADULT | T | 
| PURPLE | LARGE | STRETCH | CHILD | F | 
| PURPLE | LARGE | DIP | CHILD | F |