Three houses stand in a row, numbered 1 (left), 2 (middle) and 3 (right). Each house has a different color (red, green, blue), a different owner (Ana, Ben, Cleo) and a different pet (cat, dog, fish).

1. The green house is immediately to the left of the red house.
2. Cleo lives in the red house.
3. Ben does not own the dog.
4. Ben does not live next door to Cleo.
5. The fish lives in the right house.

Who owns the fish? Give the full arrangement of colors, owners and pets, and show how each clue fixes it.
