Union
$$A \cup B =$$
{ disease, earthquake, fire, flood, hearing, hurricane, lightning, meteor, sight, smell, taste, touch, volcano }
Symmetric Difference
$$A \ominus B =$$
{ disease, earthquake, fire, flood, hearing, hurricane, lightning, meteor, sight, smell, taste, touch, volcano }
Cartesian Product
$$A \times B =$$
{ (disease, hearing),
(disease, sight),
(disease, smell),
(disease, taste),
(disease, touch),
(earthquake, hearing),
(earthquake, sight),
(earthquake, smell),
(earthquake, taste),
(earthquake, touch),
(fire, hearing),
(fire, sight),
(fire, smell),
(fire, taste),
(fire, touch),
(flood, hearing),
(flood, sight),
(flood, smell),
(flood, taste),
(flood, touch),
(hurricane, hearing),
(hurricane, sight),
(hurricane, smell),
(hurricane, taste),
(hurricane, touch),
(lightning, hearing),
(lightning, sight),
(lightning, smell),
(lightning, taste),
(lightning, touch),
(meteor, hearing),
(meteor, sight),
(meteor, smell),
(meteor, taste),
(meteor, touch),
(volcano, hearing),
(volcano, sight),
(volcano, smell),
(volcano, taste),
(volcano, touch) }
Bagua