Question: For the String aabbab that can be generated using the grammar below S --> aB S --> bA B --> b A --> a B

For the String "aabbab" that can be generated using the grammar below

S --> aB S --> bA B --> b A --> a B --> bS A --> aS B --> aBB A --> bAA

Where:

{S,A,B) as the non-terminal alphabet, {a,b) as the terminal alphabet, S as the start symbol

How many derivation trees are there?

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