Union
$$A \cup B =$$
{ archaeology, be, biological anthropology, cultural anthropology, do, exist, feel, linguistic anthropology, love, say, see, think }
Symmetric Difference
$$A \ominus B =$$
{ archaeology, be, biological anthropology, cultural anthropology, do, exist, feel, linguistic anthropology, love, say, see, think }
Cartesian Product
$$A \times B =$$
{ (archaeology, be),
(archaeology, do),
(archaeology, exist),
(archaeology, feel),
(archaeology, love),
(archaeology, say),
(archaeology, see),
(archaeology, think),
(biological anthropology, be),
(biological anthropology, do),
(biological anthropology, exist),
(biological anthropology, feel),
(biological anthropology, love),
(biological anthropology, say),
(biological anthropology, see),
(biological anthropology, think),
(cultural anthropology, be),
(cultural anthropology, do),
(cultural anthropology, exist),
(cultural anthropology, feel),
(cultural anthropology, love),
(cultural anthropology, say),
(cultural anthropology, see),
(cultural anthropology, think),
(linguistic anthropology, be),
(linguistic anthropology, do),
(linguistic anthropology, exist),
(linguistic anthropology, feel),
(linguistic anthropology, love),
(linguistic anthropology, say),
(linguistic anthropology, see),
(linguistic anthropology, think) }
Anthropology