11. Matthews through his poetry became " a leading articulator of the Black Consciousness philosophy ". 12. One of the main articulators of the Brazilian North-eastern oral poetry of the 20th century. 13. Johnson noted that she was not only well dressed but " a most distinct articulator ." 14. Due to unconventional postures of the tongue and other articulators , interdental and frontal lisping are very common. 15. The most important active articulator is the tongue as it is involved in the production of the majority of sounds. 16. A less common periodic sound source is the vibration of an oral articulator like the tongue found in alveolar trills. 17. Therefore, only formative articulators of Hasidic thought, or particularly Kabbalistic schools / authors in Hasidism are included here. 18. The program allows patients to see the placement of articulators during speech production thus aiding them in attempting to correct errors. 19. Generally, one is moving ( the active articulator ), and the other is stationary ( the passive articulator ). 20. Generally, one is moving ( the active articulator ), and the other is stationary ( the passive articulator ).