Common Neighbors
A vertex \$A\$ that is connected to vertices \$B\$ and \$C\$ is considered to be a "common neighbor" of \$B\$ and \$C\$.
The common neighbors algorithm counts the number of common neighbors between two vertices.
Parameters
Name  Description  Data type 


The first vertex to compare. 
N/A 

The second vertex to compare with the first. 
N/A 

Edge types to traverse. 
(A blank set of strings) 