Inside is a soft structure of membrane (membranous labyrinth) that's a slightly smaller, similarly shaped version of the bony labyrinth.

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Mr. OWEN: The teeth, the lips, the soft palette, the upper palette, your gums, the structure of your jaw, all these things predicate how you're going to speak.

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An overly thick exterior will easily overwhelm the filling within, while a too thin shell will not maintain the structure of the bonbon if the centre is very soft.

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