i.e. Sugar is not salt.
Salt is not sugar.
---------------
| | |
| ---|--- |
| | 1 | 0 | |
27. |---|---|---|---| -------
| | | 0 | | | 1 | |
| ---|--- | |---|---|
| | | | | |
--------------- -------
Let "Things" be Universe; m="eggs";
x="hard-boiled"; y="crackable".