Learning Lisp.
Answers to question 1 can be found on prolog1c.txt
For problem 2 and 3, execute the following:
clisp prolog1c.lisp
The expected output is as follows:
DONALD is the father of DEBBIE
DONALD is the father of NANCY
DEBBIE is the sibling of NANCY.
NANCY is the sibling of DEBBIE.
1
?x in chain1 matches to 1.
?x in chain2 matches to 1.
?x in chain4 matches to 1.