using System.Collections.Generic;
public static void Main()
var input1 = "Inspecteren WOS type 2 pomp met CTW";
var input2 = "Inspecteren WOS type 2 pomp";
var input3 = "Inspecteren WOS type 2x2 pomp met CTW";
var list = new List<string>() { "WOS type 2 pomp met CTW", "WOS type 2 pomp", "WOS type 2x2 pomp", "WOS type 2x2 pomp met CTW" } ;
var testResult = list.SingleOrDefault( x => input3.ToUpper().EndsWith(x.ToUpper()) );
Console.WriteLine(testResult);