abcxdsywerx12y654x.=ypgfxdyxvbgy_xFH has 11 alternations aaaaaaaaaaa has 0 alternations aa has 0 alternations a has 0 alternations baaaaaaaaab has 3 alternations ababababababababababababababababababababababababababab has 54 alternations cabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcab has 36 alternations 012345678901234567890123456789012345678901234567890 has 11 alternations the_quick_brown_fox_jumps_over_the_lazy_dog has 8 alternations