The analysis from came out of a desire to build an "overall system" to accommodate all English dialects, with dialectal distinctions arising from differences in the ordering of phonological rules, as well as in the presence or absence of such rules. Another category of biphonemic analyses of English treats long vowels and diphthongs as conjunctions of two vowels. Such analyses, as found in or for example, are less concerned with dialectal variation. In , for example, there are seven basic vowels and these may be doubled (geminated) to represent long vowels, as shown in the table below: