// @nuget: Z.Expressions.Eval

​

using System;

using Z.Expressions;

using System.Linq;

public class Program

{

    public static void Main()

    {

        string[] words = {"believe", "relief", "receipt", "field"};

        var iAfterE = words.Execute<bool>("Any(w => w.Contains('ei'))");        

        Console.WriteLine("There is a word that contains in the list that contains 'ei': {0}", iAfterE);

    }

}