Union
$$A \cup B =$$
{ beauty, crown, declarative, exclamatory, foundation, glory, imperative, interrogative, kingdom, mercy, severity, understanding, victory, wisdom }
Symmetric Difference
$$A \ominus B =$$
{ beauty, crown, declarative, exclamatory, foundation, glory, imperative, interrogative, kingdom, mercy, severity, understanding, victory, wisdom }
Cartesian Product
$$A \times B =$$
{ (beauty, declarative),
(beauty, exclamatory),
(beauty, imperative),
(beauty, interrogative),
(crown, declarative),
(crown, exclamatory),
(crown, imperative),
(crown, interrogative),
(foundation, declarative),
(foundation, exclamatory),
(foundation, imperative),
(foundation, interrogative),
(glory, declarative),
(glory, exclamatory),
(glory, imperative),
(glory, interrogative),
(kingdom, declarative),
(kingdom, exclamatory),
(kingdom, imperative),
(kingdom, interrogative),
(mercy, declarative),
(mercy, exclamatory),
(mercy, imperative),
(mercy, interrogative),
(severity, declarative),
(severity, exclamatory),
(severity, imperative),
(severity, interrogative),
(understanding, declarative),
(understanding, exclamatory),
(understanding, imperative),
(understanding, interrogative),
(victory, declarative),
(victory, exclamatory),
(victory, imperative),
(victory, interrogative),
(wisdom, declarative),
(wisdom, exclamatory),
(wisdom, imperative),
(wisdom, interrogative) }
Gabriel