2. [5 pts] Let G be the following grammar: S SABE A aAa BB 2.1) Give a leftmost derivation of abbaab (fill in the table to show both derivation and the rules) Derivation S = SAB SABAB (continue...) Rule applied SSAB SSAB (continue...) 2.2) Give two leftmost derivation of aa Derivation Rule applied 2.3) Is this grammar ambiguous? 2.4) Is this language IG regular? If yes give a regular expression for the language