concat two Prisma.sql queries.

I have two pretty complex queries which i created manually using

const a = Prisma.sql(...)
const b = Prisma.sql(...)

const a = Prisma.sql(...)
const b = Prisma.sql(...)

const a = Prisma.sql(...)
const b = Prisma.sql(...)

const a = Prisma.sql(...)
const b = Prisma.sql(...)

In some cases and since both return the same data type, I would like to run them in one go concatenated using

(QUERY1) UNION (QUERY2)

(QUERY1) UNION (QUERY2)

(QUERY1) UNION (QUERY2)

(QUERY1) UNION (QUERY2).

So, my question is: How can I concat two

Prisma.sql

Prisma.sql

Prisma.sql

Prisma.sql queries?