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I am stuck here: 'First a of in' should equal 'First A Of In'
Well, that's the problem this kata is posing to you. "If the problem were different, my solution would be right, because I solved a different problem" isn't really an issue with the kata...
Expected [a] but got [b]means your code returned[b], but the correct answer is[a]. "First A Of In" is the correct result if "a", "of" and "in" aren't considered minor words.And how your solution returning a wrong value is an issue?