ThisOrBase

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Test
{
    class Person
    {
        protected string someField;

        public Person(string field)
        {
            this.SomeField = field;
        }

        public virtual string SomeField
        {
            get => someField;
            set => someField = value + " from Person";
        }
    }

    class Employee : Person
    {

        public Employee(string field) : base(field)
        {
            this.SomeField = field;
          //  base.SomeField = field;
        }

        public override string SomeField
        {
            get => someField;
            set => someField = value + " from Employee";
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            Person a = new Employee("Pesho");
            Console.WriteLine(a.SomeField);
        }
    }
}