using System;

using System.Linq;

using System.Collections.Generic;

using System.Text.RegularExpressions;

public class Program

{

 public static void Main()

 {

  //Console.WriteLine("Hello World");

 // List<string> ll=new List<string>(){"Rob,Friend","holly,Family","Billy,Friend","This is not a name"};

  //Regex pattern=new Regex("+ ,*&^!@#$");

 // Regex pattern=new Regex("([^,]*),(.*)");

    Regex pattern=new Regex(",");   

     string ll="piya,diya";

  var query= from a in ll 

             let b=pattern.Match(a)

               where b.Success

      select  new{name=b.Groups[1].Value,

                  Relationship=b.Groups[2].Value};

 foreach(var c in query)

  {

   Console.Write(c+"\n");

}

 }

}

​

​