<Li> "The five boxing wizards jump quickly ." (31 letters) </Li> <Li> "Pack my box with five dozen liquor jugs ." (32 letters) </Li> <P> A perfect pangram contains every letter of the alphabet only once and can be considered an anagram of the alphabet; it is the shortest possible pangram . An example is the phrase "Cwm fjord bank glyphs vext quiz" (cwm, a loan word from Welsh, means a steep - sided valley, particularly in Wales). Most such examples are not usually understood even by native English speakers, and so arguably are not really English pangrams . Perhaps the most easily understood perfect pangram is "Mr Jock, TV quiz PhD, bags few lynx"--but it includes three abbreviations (Mr, TV and PhD). </P> <P> Logographic scripts, that is, writing systems composed principally of logograms, cannot be used to produce pangrams in the literal sense, since they are radically different from alphabets or other phonetic writing systems . In such scripts, the total number of signs is large and imprecisely defined, so producing a text with every possible sign is impossible . However, various analogies to pangrams are feasible, including traditional pangrams in a romanization . In Japanese, although typical orthography uses kanji (logograms), pangrams are required to contain every kana (syllabic character) when written out in kana alone: the Iroha is a classic example . </P>

Shortest sentence containing all the letters of the alphabet