| http://www.w3.org/ns/prov#value | - velaric airstream mechanism.??? There is regular oral articulation, while the back of tongue seals off air from the lungs and creates a relative vacuum.??? Air in the mouth is rarified by backward and downward movement of the tongue.?????? When the stricture is released the air rushes in, creating a click.??? Although we think of such sounds as exotic, English uses a few of them for quasi-linguis
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