A speech about double jokes

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 A and pig B are at the door, and pig C is on the roof. Who is pig A, where is pig B and what is pig C? ) So:

Wolf: Who are you?

Pig A: "Yes!"

Wolf: "What?"

Pig A: "What's on the roof?"

Wolf: "I mean what's your name?"

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

The wolf asked pig B again.

Wolf: Who are you?

Pig B: "I'm not' who', he's' who' (referring to pig A)."

Wolf: Do you know him?

Pig B: "Hmm!"

Wolf: "Who is he?"

Pig B: "Yes."

Wolf: "What?"

Pig B: "What's on the roof!" "

Wolf: "Where?"

Pig B: "Where am I?"

Wolf: "Who?"

Pig B: "Who is he?" . (pointing to pig head a again) "

Wolf: "How should I know?"

Pig B: "Who are you looking for?"

Wolf: "What?"

Pig B: "He's on the roof."

Wolf: "Where?"

Pig B: "It's me."

Wolf: "Who?"

Pig B: "Who am I? Who is he?"

Wolf: "My God!" " "

Pig A and Pig B: "My God" is our father! "

Wolf: "What, it's your father?"

Pig B: "No!"

The wolf couldn't stand it any longer and sighed, "Why?"

Pig A, Pig B and Pig C: "Do you know our grandfather?"

Wolf: "What?"

Pig A: "No, our grandfather is' why'."

Wolf: "Why?"

Pig A: "Yes!"

Wolf: "What is it?"

Pig A: "No,' why'."

Wolf: "Who?"

Pig A: "Who am I?"

Wolf: Who are you?

Pig A: Yes, I am' Who'. "

Wolf: "What?"

Pig A and Pig B: "He's on the roof."