A joke about three pigs and a wolf

One day, the wolf wanted to eat three little pigs. Two of the three little pigs are at the door and one is on the roof. Pig 1 and pig 2 are at the door, and pig 3 is on the roof. Who is the name of pig 1, where is the name of pig 2 and what is the name of pig 3? So there was a wonderful dialogue.

Wolf: Who are you?

Pig 1: Right.

Wolf: What?

Pig 1: What's on the roof?

Wolf: I mean what's your name?

Pig 1: My name is "Who" and "What" is on the roof!

The wolf asked Pig 2 again: Who are you?

Pig 2: I'm not a "who", he is a "who". Pointing at the pig 1

Wolf: You know him?

Pig 2: Hmm!

Wolf: Who is he?

Pig 2: Yes.

Wolf: What?

Pig 2: What's on the roof!

Wolf: Where?

Pig 2: "Where" is me.

Wolf: Who?

Pig 2: Who is he? Pointing at the pig 1 again.

Wolf: How should I know?

Pig 2: Who are you looking for?

Wolf: What?

Pig 2: He's on the roof?

Wolf: Where?

Pig 2: It's me.

Wolf: Who?

Pig 2: I'm not a "who", he is a "who".

Wolf: Good heavens!

Pig 1.2: "God" is our father.

Wolf: What, your father is?

Pig 2: No!

The wolf couldn't stand it anymore and sighed: Why?

Pig 1.2.3: Do you know our grandfather?

Wolf: What?

Pig 1: No, our grandfather is "why".

Wolf: Why?

Pig 1: Yes!

Wolf: What's this?

Pig 1: There is no "why".

Wolf: Who?

Pig 1: Who am I?

Wolf: Who are you?

Pig 1: Yes, who am I?

Wolf: What?

Pig 1.2: He is on the roof. ~~~~~~~~