sentences:  The combining classes for the two accents are both 230, thus U+1EBF is not equivalent to U+0065 U+0301 U+0302.Since not all combining sequences have a precomposed equivalent (the last one in the previous example can only be reduced to U+00E9 U+0302), even the normal form NFC is affected by combining characters' behavior.When two applications share Unicode data, but normalize them differently, errors and data loss can result.