| | | | | |
9. | | 1 | 10. | 0 | |
| | | | | |
------- -------

------- -------
| | | | | |
11. | 0 | 1 | 12. | 1 | 1 |
| | | | | |
------- -------

__________


-----
| |
x |
| |
|--y'-|
| |
x' |
| |
-----

Taking y="healthy people"; x="happy";

--- --- --- ---
| 0 | | | | 1 | | 0 |
13. |---| 14. |-1-| 15. |---| 16. |---|
| 1 | | | | 1 | | |