Working of the GHS algorithm
Indeed.

Let the fragment at a particular stage be :
{1,2},{5,6},{3},{4}.

Now the fragment {1,2} will connect with the least weight outgoing edge which is 1-3 and fragment {5,6} will connect with the least weight outgoing edge which is 1-5 to create the fragment {1,2,3,5,6} and {4} and finally it connects to {4} with edge {2-4}.

Hope this helped.