Union
$$A \cup B =$$
{ confrontation, death, despair, grief, know hate, lamentation, lose love, not getting, old age, pain, rebirth, resolution, setup, sorrow }
Symmetric Difference
$$A \ominus B =$$
{ confrontation, death, despair, grief, know hate, lamentation, lose love, not getting, old age, pain, rebirth, resolution, setup, sorrow }
Difference
$$A - B =$$
{ death, despair, grief, know hate, lamentation, lose love, not getting, old age, pain, rebirth, sorrow }
Cartesian Product
$$A \times B =$$
{ (death, confrontation),
(death, resolution),
(death, setup),
(despair, confrontation),
(despair, resolution),
(despair, setup),
(grief, confrontation),
(grief, resolution),
(grief, setup),
(know hate, confrontation),
(know hate, resolution),
(know hate, setup),
(lamentation, confrontation),
(lamentation, resolution),
(lamentation, setup),
(lose love, confrontation),
(lose love, resolution),
(lose love, setup),
(not getting, confrontation),
(not getting, resolution),
(not getting, setup),
(old age, confrontation),
(old age, resolution),
(old age, setup),
(pain, confrontation),
(pain, resolution),
(pain, setup),
(rebirth, confrontation),
(rebirth, resolution),
(rebirth, setup),
(sorrow, confrontation),
(sorrow, resolution),
(sorrow, setup) }
Three-act structure