Extremely naive Apple Property List parser

LinqApplePropertyList

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;
using System.Linq;

namespace LinqApplePropertyList {
    class Program {
        static void Main(string[] args) {

            var doc = XDocument.Load("Data.xml");

            var plists = doc.ReadAsPLists();
        }
    }

    public static class PListExtensions {
        
        public static List<PList> ReadAsPLists(this XDocument doc) {
            return (from p in doc.Elements("plist")
                    select new PList() {
                                    Arrays = p.ReadAsArrays()
                                  }).ToList();
        }

        public static List<PLArray> ReadAsArrays(this XElement pListElement) {
            return (from a in pListElement.Elements("array")
                    select new PLArray() {
                                            Dicts = a.ReadAsDicts()
                                         }).ToList();
        }
        public static List<PLDict> ReadAsDicts(this XElement dictElement) {
            return (from d in dictElement.Elements("dict")
                    select new PLDict() {
                                            KeyValuePairs = d.ReadAsKeyValuePairs()
                                        }).ToList();
        }
        public static List<PLKeyValuePair> ReadAsKeyValuePairs(this XElement arrayElement) {
            return (from k in arrayElement.Elements("key")
                    select new PLKeyValuePair() {
                        Key = k.Value,
                        Value = k.ElementsAfterSelf().First().ReadAsValue()
                    }).ToList();
        }

        public static PLValue ReadAsValue(this XElement valueElement) {
            var plValue = new PLValue();
            if (valueElement.Name == "string") {
                plValue.StringValue = valueElement.Value;
            }
            return plValue;
        }

    }

    public class PList {
        public List<PLArray> Arrays;
        
    }

    public class PLArray {
        public List<PLDict> Dicts;
    }

    public class PLDict {
        public List<PLKeyValuePair> KeyValuePairs;
    }

    public class PLKeyValuePair {
        public string Key;
        public PLValue Value;
    }

    public class PLValue {
        
        public String StringValue;
    }
}