NOTE: It is also possible to view a string as a sequence of grapheme clusters . Grapheme clusters divide the text into units that correspond more closely than character strings to the user's perception of where character boundaries occur in a visually rendered text. A discussion of grapheme clusters is given at the end of Section of the Unicode Standard, Version 4 [Unicode ] ; a formal definition is given in Unicode Standard Annex #29 [UTR #29] . The Unicode Standard defines default grapheme clustering. Some languages require tailoring to this default. For example, a Slovak user might wish to treat the default pair of grapheme clusters "ch" as a single grapheme cluster. Note that the interaction between the language of string content and the end-user's preferences may be complex.
Recognition of cursive text is an active area of research, with recognition rates even lower than that of hand-printed text. Higher rates of recognition of general cursive script will likely not be possible without the use of contextual or grammatical information. For example, recognising entire words from a dictionary is easier than trying to parse individual characters from script. Reading the Amount line of a cheque (which is always a written-out number) is an example where using a smaller dictionary can increase recognition rates greatly. The shapes of individual cursive characters themselves simply do not contain enough information to accurately (greater than 98%) recognise all handwritten cursive script. [ citation needed ]
PYRRHIC : In classical Greek or Latin poetry, this foot consists of two unaccented syllables--the opposite of a spondee . At best, a pyrrhic foot is an unusual aberration in English verse, and most prosodists (including me!) do not accept it as a foot at all because it contains no accented syllable. Normally, the context or prevailing iambs, trochees, or spondees in surrounding lines overwhelms any potential pyrrhic foot, and a speaker reading the foot aloud will tend artificially to stress either the first or last syllable. See meter for more information.