Question: 1. Describe two algorithms, using a diagram, for determining that a person x is an ancestor of y, i.e., the proposition, ancestor (x, y) holds.

1. Describe two algorithms, using a diagram, for determining that a person x is an ancestor of y, i.e., the proposition, ancestor (x, y) holds.

2. Write a Prolog program for each of the two algorithms above.

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