WHAT DOES PLAT BESI MEAN?

the diphthong /eɪ/ as in ace and important, generally when ⟨a⟩ is followed by just one, or occasionally two, consonants after which An additional vowel letter—this outcomes from Middle English lengthening followed by The nice Vowel Change: the among the four ABO blood groups characterised by the existence of antigens selected with the letter