1. Using the language described by following grammar, declare an integer variable called x and character variable called c.

< dec1-list > ::= < declartion >

| < dec1-list>

< declaration > ::= < identifier-list > ";" < type > ";"

< identifier-list > ::= < identifier >

| < identifier-list > "," < identifier >

< type > ::= "integer"

| "character"

< identifier > ::= < letter >

| < identifier > < letter >

| < identifier > < digit >

| < identifier > "_"

2. Define variable binding and discuss how binding works in two of the programming languages we studied in class. Languages learned - Python, Java, Rust