Use the following production rules to determine whether or not each of the associated strings is valid. Show the transformations or provide adequate explanation: N = {S, A, E} T = {a, b, e} Start = S 1. S --> SA 2. A --> bSe 3. A --> be 4. S--> E 5. E--> Eea 6. E --> a (a) aeaeaea (b) baeaea (c) Is this grammar context-sensitive or context free and why