Question

6. Comma between goals means:

a. logical conjunction

b. logical disjunction

c. Exclusive OR

d. logical implication

7. Prolog works by:

a. Scanning clauses in the program from bottom to top, and by trying to satisfy goals in a question from left to right

b. Scanning clauses in the program from top to bottom, and by trying to satisfy goals in a question from left to right

c. Scanning clauses in the program from top to bottom, and by trying to satisfy goals in a question from right to left

d. Scanning clauses in the program from bottom to top, and by trying to satisfy goals in a question from right to left

8. The lexical scope of a variable is:

a. All clauses that describe the same relation

b. The clause in which the variable appears

c. The whole database of clauses

d. The whole database of clauses plus the query (the question)

9. The term loves

(Ann, John)

matches which of the following terms? (Please make more than one selection if needed.)

[] loves(Mary, Tom)

[] loves(Mary, tom)

[] loves(mary, tom)

[] loves(mary, Tom)

10. Which of the following are variables in Prolog? (Please make more than on selection if needed.)

[] variable

[] Variable

[] _variable

[] _Variable

Answer 1

6)  a.  logical conjunction
7)  b.  Scanning clauses in the program from top to bottom, and by trying to satisfy goals in a question from left to right
8)  b.  The clause in which the variable appears
9)  a.  loves(Mary, Tom)
10) 
(b) Variable
(c) _variable
(d) _Variable