0 relating to the crown (= top part) of the head --
1 relating to the crown (= the part oustide the gum) of the tooth --
Such a rule might have converted velars into coronals when followed by a liquid.
The resultant ranking would yield targetappropriate realizations of coronals and velars before liquids without the possibility of overgeneralization.
Cantonese generally contrasts front and back rounded vowels (3a), but between coronals, only the front rounded vowels appear (3b).
More specifically, this model can be used to derive the coarticulatory fronting of vowels by coronals, discussed in 2.1.2 above.
Other work has also shown that this approach can account for other situations where both laryngeals and coronals may show unmarked behaviour in different situations.
One type of evidence for this has been the claim that coronals are common epenthetic segments.
The greater salience of labials over coronals, in particular, may be tied to a difference in the speed of the articulatory gestures.
Here the generalisations extend beyond coronals and apply to stops at all places of articulation.
