Consider the following ambiguous context-free grammar. S XaXbx X+aX6X1 1. The grammar above is ambiguous. So, there exist strings that have multiple leftmost derivations in this grammar. However, not all strings are like this. Write down below a length 6 string that has exactly one leftmost derivation in the grammar above. There are many possible correct answers. Choosing any one of them will do. 2. How many different leftmost derivations does the string babbbaabb have in the grammar above