Question

what is the sequence diagram of electric pencil sharpener

Answer 1

I could answer in respect to "diagram of electric pencil sharpener", but the term "sequence" makes no logic for me in this context.
If that is your case, then you can answer anything you want, because the statement is open to your interpretation without any further glossary provided by the questioner. As long as you show -derivation- you obtain from "sequence".

Answer 2

Sequence diagram is a type of diagram .It is a Object Oriented Concept