html - Access grand child elements from the DOM in jquery? -

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how go accessing grand child elements within in ul structure such jquery:

<ul>    <li>sample</li>    <li>sample</li>    <li>sample</li>    <li>         <ul>             <li>need access li</li>         </ul>    </li>    <li>sample</li>  </ul>

should simple

$('ul li ul li')

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