title: d3.js, collapsible tree - how to connect different parents with same child
body: <p>So I am using <a href="http://bl.ocks.org/mbostock/4339083" rel="nofollow">http://bl.ocks.org/mbostock/4339083</a> to create a collapsible tree and it works great.</p>
  
  <p>Now the thing is I have some nodes which have the same children, so I want to know if there is any way to visualize the graph in such a way that both the parents expand to the same child?</p>
  
  <p>So basically when you expand the node of a parent it should automatically expand the node of the other parent leading to the same common child, is this possible with any graph?</p>