Vowels may undergo a deletion.Logical formLearned from6 sentences. A vowel may be used.Logical formLearned from6 sentences. Vowels can be creaky.Logical formLearned from6 sentences. A system can be constituted-of-or-filled-with some vowels.Logical formLearned from6 sentences. Vowels may pertain-to an alphabet.Logical formLearned from6 sentences. Long vowels can be phonemic.Logical formLearned from6 sentences. Some classes can be constituted-of-or-filled-with vowels.Logical formLearned from6 sentences. Some vowels may occur.Logical formLearned from6 sentences. Vowels can be flattened.Logical formLearned from6 sentences. A vowel can be long.Logical formLearned from6 sentences. A vowel can be nasalized.Logical formLearned from6 sentences. Vowels may be nasalised.Logical formLearned from6 sentences. A sequence can be constituted-of-or-filled-with some vowels.Logical formLearned from6 sentences. Vowels may be represented.Logical formLearned from6 sentences. Vowels may occur.Logical formLearned from6 sentences.