Question: Consider a relation parent(X,Y) which means 'X' is a parent of 'Y' 3. (10 points) Consider a relation parent (X, Y) which means 'X' is

Consider a relation parent(X,Y) which means 'X' is a parent of 'Y'

3. (10 points) Consider a relation parent (X, Y) which means 'X' is a parent of Y (a) (5 points) Write all the facts (tuples) that describe the following tree VO V1 V2 V3 V4 V5 (b) (5 points) Consider the following rules for defining ancestor(X, Y): X is an ancestor of Y if X is a parent of Y. X is an ancestor of Y if X is a parent of some Z, and Z is an ancestor of Y. . . Write a datalog program and apply it to find all ancestors of all nodes in the above tree

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2. Place a value on the outcomes.

4. Obtain an annual amount of benefits (operational results) from training by comparing results after training to results before training (in dollars).

7. Calculate the ROI by dividing benefits (operational results) by costs. The ROI gives an estimate of the dollar return expected from each dollar invested in training.