This image shows the "Process the Data" paragraph. 
This image shows the following partial lines of code:

Line 1:import org.apache.spark.sql.functions.col

Line 2: /* 
 
Line 3: * Class representing a graph edge - a connection between two users. 
 
Line 4: * Each record in the CSV file corresponds to an instance of this class.
 
Line 5: */
Line 6: 
case class Edge(
    
Line 7: idStart: Integer,
    
Line 8: idEnd: Integer

Line 9: )
Line 10: 

/* Parse the CSV file into a DataFrame consisting of instances of the Edge class */
Line 11: 
val edges = graphText
    
Line 12: .map(s => s.split(","))
    
Line 13: .filter(s => s.size == 2)
    

The paragraph's status is "FINISHED". The paragraph's toolbar contains the following icons: "Run this paragraph (Shift+Enter)", "Hide editor (Ctrl+Alt+E)", "Hide output (Ctrl+Alt+O)", and the "Menu" (gear icon).