BROADCASTS.com

b'This episode is based on vowel harmony which describes the division of the Igbo vowels into two; using the advancement of the tongue root feature out of the four phonetic qualities for division of these vowels. Illustrations were also outlined using simple words. Also, the issue of /a/ as an opaque vowel was discussed and a further research by Nwaozuzu (2005) was highlighted as she proposed root control and the extension of vowel harmony to complex words.'