For the following regular expression: Give 5 words that the regular expression recognizes and 5 words that the regular expression doesn't recognize!

a) (a|ab)(a*|ab)* Over the alphabet: {a,b}

b) a*(ab|ba)*b* Over the alphabet: {a,b}

c) a*b*b(a|(ab)*) Over the alphabet: {a,b}

d) a*(b|abb)*b*b Over the alphabet: {a,b}