Expression -> Expression | Term

-> Term

Term -> List Term -> List

List -> List list Factor

-> Factor

Factor -> Factor * -> Factor +

-> Factor ?

-> Primary

Primary -> ( Expression )

-> a

-> b

Question:

Show how the following input string is parsed:

 (ab*) list (b|a) a? 

Build the derivation tree (top-down, left-most derivation) for the string parsed.