structural:summarization, linguistic:voice_change, quality:corruption
Definition

The intersection of two sets A {\displaystyle A} and B, {\displaystyle B,} denoted by A ∩ B {\displaystyle A\cap B}, is the set of all objects that are members of both the sets A {\displaystyle A} and B. {\displaystyle B.} In symbols:

That is, x {\displaystyle x} is an element of the intersection A ∩ B {\displaystyle A\cap B} if and only if x {\displaystyle x} is both an element of A {\displaystyle A} and an element of B. {\displaystyle B.}

For example: