Question 1 . 1. Carol will not erder sushi. Arice and Bob want to steal each other's food, which is pointless if they both order the etse. x={A,B,C,D},D={P,q, variables domain 2. Write the unary constraints. ( 1.5 mark) 3. Write the binary constraints. ( 1 marks) 4. Draw the corresponding constraint graph for this CSP. ( 1 marks) 5. Now we will run some iterations of forward checking. Assume that no values have been assigned to the variables. Write down the value(s)/domain that each variable will end up having if we assign "pasta" to Alice and show the eliminated values from each domain (1.5 marks) B. The animals in Farmland aren't getting along and the farmers have to assign them to different pens. To avoid fighting, animals of the same type cannot be in connected pens. Fortunately, the Farmland pens are connected in a tree structure. Consider the following constraint diagram that shows six pens with lines indicating connected pens. The remaining domains for each pen are listed below each node. After assigning a bull to pen 5 , enforce arc consistency on this Us warks ( 3 marks) arcs shown in the figure. What are the remaining values for each pen? (3 mark