Deeply emebedded content model

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<deeply>
        <embedded>
                <xml>
                        <elements>
                                <deeply>
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<deeply>
                                                                        
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                        <deeply>
                                                                        
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<xml>
                                                                        
                                                                        
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</xml>
                                                                        
                                                                
</embedded>
                                                                        
                                                        </deeply>
                                                                        
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                        </deeply>
                                                                        
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        </xml>
                                                                        
</embedded>
                                                                
</deeply>
                                                        </elements>
                                                </xml>
                                        </embedded>
                                </deeply>
                        </elements>
                </xml>
        </embedded>
</deeply>