Alternations between quantities 3 and 2 are either consonant clusters or sequences of two identical consonants. In the strong grade, the first consonant forms the coda of the preceding syllable, and the remaining consonants form the onset of the following syllable. In the weak grade, only the last consonant belongs to the onset of the next syllable, and the remaining consonants belong to the coda of the preceding syllable. Thus, when there are three or more consonants, the syllable division changes between the grades. In addition, the strong grade by default has a lengthened consonant in the coda, while this lengthening is generally absent in the weak grade. However, this lengthening is subject to the modifying effects of consonant lengthening and unstressed vowel shortening, which can in some occasions level the length distinctions, so that length not an absolute indicator of grade (though it is of "quantity"). In Eastern Finnmark, no lengthening is found at all, instead of length the preceding vowel is short, while the vowel becomes long when the length would be absent.