Union
$$A \cup B =$$
{ act, check, climax, do, exposition, fall, plan, resolution, rise }
Symmetric Difference
$$A \ominus B =$$
{ act, check, climax, do, exposition, fall, plan, resolution, rise }
Difference
$$A - B =$$
{ climax, exposition, fall, resolution, rise }
Cartesian Product
$$A \times B =$$
{ (climax, act),
(climax, check),
(climax, do),
(climax, plan),
(exposition, act),
(exposition, check),
(exposition, do),
(exposition, plan),
(fall, act),
(fall, check),
(fall, do),
(fall, plan),
(resolution, act),
(resolution, check),
(resolution, do),
(resolution, plan),
(rise, act),
(rise, check),
(rise, do),
(rise, plan) }