#### Answer

S={xxx, xxy, xyx, xyy, yxx, yxy, yyx, yyy}

#### Work Step by Step

x denotes part above specification
y denotes part below specification.
each part can either be x or y.
hence:
S={xxx, xxy, xyx, xyy, yxx, yxy, yyx, yyy}

Published by
Wiley

ISBN 10:
1118539710

ISBN 13:
978-1-11853-971-2

S={xxx, xxy, xyx, xyy, yxx, yxy, yyx, yyy}

You can help us out by revising, improving and updating this answer.

Update this answerAfter you claim an answer you’ll have **24 hours** to send in a draft. An editor
will review the submission and either publish your submission or provide feedback.