Please need help!

please also provide explanation.

Consider the following grammar, which supports the syntax needed to return a value from a subroutine call. id = - Simt Assignment FunCall FunDef Expr ExprTail Primary Op ArgList Args Tail ParamList Param Tail Name Type Assignment | FunCall return id | FunDef Expr Name (ArgList) Type Name (ParamList) Primary ExprTail op expre id SubrCall (Expr) +1-111 Expr Args Tail & ArgLists Type id Param Tails ParamList 8 id int float void 1 1 1 1 1 Briefly sketch out the salient design of an Attribute Grammar, which extends the above Context-Free grammar, that would be required to handle the static semantics associated with making a function call. x = foo (a, b) This should demonstrate an understanding of attributes, inherited attributes, and synthesized attributes