Please give example a string length at least 5 using regular language below 1. (b ( a U b) + a) U (a( b U a)+b) 2. (b U a)*b(b U a)(b U a) 3. (a) u (b*a*)*aa) 4. ((b U a)(a U b)b)+ 5. (b(b U a)) u (a U aba)*( )+a*b*a) U ( a( U *) *(b U a)) And give simple description by expression. Note: empty set & epsilon