Again, consider the highlighted sounds.

  Bilabial Labiodental Dental Alveolar Postalveolar Palatal Velar
(Oral) Stop p b         t d     c ɟ k g
(Nasal) Stop   m           n       ɲ   ŋ
Trill               r            
Fricative     f v     s z ʃ ʒ     x  
Central approximant   w                   j ɥ    
Lateral
approximant 		              l            

Do the highlighted sounds above form a natural class?

Yes No

Incorrect: There is no single phonetic feature shared by all the highlighted sounds.

Correct! There is no feature or combination of features that these sounds share that are not shared with other sounds in the inventory.

Which one of the sounds, if removed from the list, will allow the remaining sounds to form a natural class?

Which sound is it?

Try again.

Correct! The sounds [w], [j], [ɥ] and [l] form a natural class in Breton.

Now, from the menus below select the minimal number of features necessary to define the natural class.

Voicing: Place: Manner:

Reconsider 'voicing'.

Reconsider 'place'.

Reconsider 'manner'.