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Consider the following relation: likes(ann,john). likes(peter,ann). likes(john,john). What is the answer to the following question: ?-likes(X,ann),likes(Y,ann). a) false b) X=peter, Y=ann. c) X = Y,
Consider the following relation:
likes(ann,john). likes(peter,ann). likes(john,john).
What is the answer to the following question:
?-likes(X,ann),likes(Y,ann).
| a) | false | |
| b) | X=peter, Y=ann. | |
| c) | X = Y, Y = peter. | |
| d) | X=Y, Y=john. |
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Data Management Databases And Organizations
Authors: Watson Watson
5th Edition
0471715360, 978-0471715368
