40. The method according to claim 26, wherein each word consists of three speech sounds, wherein a first speech sound is a consonant speech sound, a second speech sound is a vowel speech sound and a third speech sound is a consonant speech sound.
40. The method according to claim 26, wherein each word consists of three speech sounds, wherein a first speech sound is a consonant speech sound, a second speech sound is a vowel speech sound and a third speech sound is a consonant speech sound. 43. The method according to claim 40, said method further comprising the step of testing said contrasting speech sounds in said second speech sound of said words.