| 11. | The voiced labial fricative " v " varies ( idiolectal free variation ) between labiodental and bilabial.
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| 12. | The Fruit & No-Nut Bar is a nut-free variation of the popular fruit and nut energy bar.
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| 13. | Copper-free variations to the Sonogashira reaction have been developed to avoid the formation of the homocoupling products.
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| 14. | Both sounds, however, are in free variation.
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| 15. | The initial /'/ may be pronounced as either [ ? ] or [ ? ] in free variation.
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| 16. | In Wolof, a back-released velar click is in free variation with a lateral click or an alveolar click.
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| 17. | It's a free variation phonological alternation.
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| 18. | In other positions, etymological seems to be in free variation with ( etymological, however varies only with ).
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| 19. | Before [ i ] it is optionally palatalized [ dz ] in free variation with [ dz ].
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| 20. | As with its constituent vowels, diphthongs with short and are subject to the same free variation described above.
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