    
          
            <td>
            
            </td>
          
        
        <tr>
        
          
            <td>
            "coord"
            </td>
          
          
            <td>
            A bidirected relation between two CellularSpaces connecting Cells with the same (x, y) coordinates.
            </td>
          
          
            <td>
            target
            </td>
          
          
            <td>
            inmemory, name
            </td>
          
