Answer No : 7 : 
<html>
<head>
<title>Lionet Computer Training Institute</title>
</head>
<body>
<ol type=1>

<li>Coffee</li>

<li>Tea

<ol type="i">
<li>Black Tea</li>
<li>Gren Tea</li>
</ol>

</li>

<li>Milk</li>

</ul>

</body>
</html>
Output: