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175: Asmt#6: Prolog family tree , Name: ___________________________

• CS 340, Fall 2019, York College of Pennsylvania
• 178, 40 points, 2019-11-08 (due by midnight)

There is no document required for this assignment.

Create a Prolog program, with file extension .pro, that meets the following requirements.

• Include a fact database (intensional Datalog database) of your specific family tree, using the facts male, female, and parent. This database should include immediate members of your family, to include at least three generations. All names of people in your family tree should be string literals.
• Include a rule database (extensional Datalog database) for a generic family tree. Include rules for the following.: grandfather, grandmother, grandson, granddaughter, cousin, niece and nephew.
• Include a query that will list all pairs of cousins in your family tree. Explain your output for the query.
• Include an explanatory program comment before each group of facts on the line before the first fact.
• Include an explanatory program comment for each rule on the line before the rule.

Comments should be interspersed above each domain group and each constrain group explaining what is being done or what constraint is being specified.

Note: You need to run the program, then copy-paste the output to the program before submission.

In Prolog, a multi-line comment starts with a "/*" and ends with a "*/" as in the following.

The begin comment "/*" and end comment "*/" should be on separate lines and not combined with other text.

The single line comment starts with a "%" and continues until the end of the line. Such comments should be on a line by themselves and not combined with other parts of a Prolog program.

Create a Prolog program using TuProlog to solve the requirements.

The prints predicate should appear at the top and be used for printing as in the examples in the notes.

Your program should include the following line at the bottom.

Attach the Prolog file, extension pro, (and only one Prolog file) to your email message.

Submit by sending an email to rsnyder9@ycp.edu from your YCP email address/account that has the above file as an attachment.

The subject line should be the following (and only the following).

Here are some general comments.

• Some students did not include the cousins output (in comments).
• Some students did not include the cousins explanation (in comments).