Question: in Prolog, Given the fact, rules, and queries below % Facts & Rules fib(1,1). fib(2,1). fib(N,R):- N >= 3,N1 is N-1, N2 is N-2, fib(N1,R1),

in Prolog, Given the fact, rules, and queries below

% Facts & Rules fib(1,1). fib(2,1). fib(N,R):- N >= 3,N1 is N-1, N2 is N-2, fib(N1,R1), fib(N2,R2), R is R1+R2.

% Goals (queries) ?- fib(9,R). ?- fib(9,9).

a) Write English statement for the facts and rule. b) Describe step by step how the fib (3) is calculated. c) What is the answer of the two queries listed in bold. Explain them.

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