It's not an alphabet, it's a semi-syllabary (and that's written on the page you linked). There is no separate characters for consonants and vowels but instead a

It's not an alphabet, it's a semi-syllabary (and that's written on the page you linked). There is no separate characters for consonants and vowels but instead a separation between consonants and rhymes. Rhymes can be made of one or multiples vowels, and can be terminated by a consonant (/n/, /ŋ/).