Turkish uses a Latin based script that was implemented in 1928. Because of its relatively recent adaptation, the alphabet, hence written Turkish is highly phonemic. That is, the pronunciation of letters (their corresponding phonemes, sounds) are mostly consistent across different contexts. In other words, there is a one to one relationship between a letter and its phoneme. For example, the letter a, first letter of the alphabet always represents the phoneme (sound) /ɑ/ (as in English father). Compare that to English letter a; in each of the following English words the letter a represents a different phoneme: and, far, about . There are 8 vowels and 21 consonants in Turkish.