What are Semantic Nets? Briefly discuss the utility of semantic nets in knowledge management. Give suitable example in support of your answer.

Write a program in LISP to calculate the area of the circle, whose radius is given by the user. Write proper comments to enhance readability of your code.

What is Prenex Normal Form (PNF). Write the steps to transform a Well-Formed Formula (WFF) into PNF. Transform Ɐx(Q(x) →(ⱻx) R(x, y)).

What are Semantic Nets? Briefly discuss the utility of semantic nets in knowledge management. Give suitable example in support of your answer.

Write BFS algorithm. Use the BFS to search the goal node . Show each step of the algorithm.

What is the difference between Knowledge and Intelligence? Enumerate the various knowledge representation schemes, giving a brief description for each scheme.

If the propositions are described as follows: (8 Marks)
P : He needs a doctor
S : He is Sick
Q : He needs a lawyer
U : He is injured
R : He has an accident
Then represent the following formulas in English :
(i) (P ˄ Q) → R
(ii) (P ˄ Q) ↔ (S ˄ U)

Write a program in Prolog to find and print prime numbers between 50 to 200.