Other Grapheme Extend - No
No is the classification for characters that do not extend a grapheme cluster beyond their base, meaning they function as standalone units or as starters of new clusters rather than as modifiers, spacing marks, or combining signs that attach to a preceding character. This includes typical letters, digits, punctuation, and most symbols, which neither alter the shape of a previous character nor form a ligature-like connection with it. In practice, "No" indicates that the character does not participate in the continuation of a grapheme cluster, so a sequence of "No" characters each begins its own cluster, and they do not merge with adjacent marks. This contrasts with characters that do extend a cluster, such as diacritics or variation selectors, which would be assigned the opposite value. Thus, "No" helps text processing tools correctly segment strings into grapheme clusters by identifying which characters are not extenders.