using System;

using Newtonsoft.Json;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        string myJsonString = @"[['fight', 'gunshot', 'fleeing'], ['gunshot', 'falling', 'fleeing']]";

        List<List<string>> items = JsonConvert.DeserializeObject<List<List<string>>>(myJsonString );

        Console.Write(items[0][0]);

        foreach (var item in items)

        {

            foreach(var subitem in item){

                Console.WriteLine(subitem);

            }

        }

    }

}