There are 5 houses sitting next to each other, each with a different color, occupied by 5 guys, each from a different nationality, and with a different favorite drink, cigarette, and pet.

Here are the facts:

The Brit occupies the red house.
The Swede owns a dog.
The Danish drinks tea.
The green house is on the left of the white house.
The owner of the green house drinks coffee.
The person who smokes "Pall Mall" owns a bird.
The owner of the yellow house smokes "Dunhill".
The owner of the middle house drinks milk.
The Norwegian occupies the 1st house.
The person who smokes "Blend" lives next door to the person who owns a cat.
The person who owns a horse lives next door to the person who smokes "Dunhill".
The person who smokes "Blue Master" drinks beer.
The German smokes "Prince".
The Norwegian lives next door to the blue house.
The person who smokes "Blend" lives next door to the person who drinks water.

The question is: Who owns the fish?

Create a Corticon rule model to solve this problem.