Execise Chapter 2.2

1. eats(bill,chocolate).
   eats(bill,bananas).
   eats(bill,cheese).

   Here, eats/2 is read as being a relation that holds when the first named object is willing to consume samples of the second named object.

2. square_root(16,-4).
   square_root(16,4).

3. country(wales).
   country(ireland).
   country(scotland).

   The reading is that the one-place `relation' holds when the named object has the status of a country. Here, in our informal description of the semantics of the predicate, we have said nothing about the meaning of what it is to be a country.