diff --git a/Convention/[Runtime]/File.cs b/Convention/[Runtime]/File.cs
index 82e4102..e9631ce 100644
--- a/Convention/[Runtime]/File.cs
+++ b/Convention/[Runtime]/File.cs
@@ -11,7 +11,7 @@ namespace Convention
     {
         private string FullPath;
         private FileSystemInfo OriginInfo;
-        private FileStream OriginControlStream;
+        public FileStream OriginControlStream { get; private set; }
         public ToolFile(string path) 
         {
             FullPath = path;
diff --git a/Convention/[Symbolization]/Reader/Reader.cs b/Convention/[Symbolization]/Reader/Reader.cs
new file mode 100644
index 0000000..7b30999
--- /dev/null
+++ b/Convention/[Symbolization]/Reader/Reader.cs
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Convention.Symbolization.Internal
+{
+    internal class Reader
+    {
+        private ToolFile FileCore;
+
+        public Reader(string file)
+        {
+            FileCore = new(file);
+            if (FileCore.Exists() == false)
+                throw new FileNotFoundException($"{file} not exists");
+            FileCore.Open(FileMode.Open);
+        }
+
+        public SymbolizationContext BuildContext()
+        {
+            SymbolizationContext context = new();
+            using StreamReader reader = new(FileCore.OriginControlStream);
+            for (; reader.EndOfStream==false;)
+            {
+                var line = reader.ReadLine();
+                    }
+        }
+    }
+}
diff --git a/Convention/[Symbolization]/Symbolization.cs b/Convention/[Symbolization]/Symbolization.cs
new file mode 100644
index 0000000..c373b52
--- /dev/null
+++ b/Convention/[Symbolization]/Symbolization.cs
@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Convention.Symbolization
+{
+    public sealed class SymbolizationContext
+    {
+        public SymbolizationContext() { }
+        public SymbolizationContext(SymbolizationContext forward)
+        {
+            ParentContext = forward;
+        }
+
+        private readonly SymbolizationContext ParentContext;
+
+        public void Execute(string commandsBlock)
+        {
+
+        }
+    }
+
+    public sealed class SymbolizationCore
+    {
+        internal SymbolizationCore(Internal.Reader reader)
+        {
+
+        }
+
+        public SymbolizationContext Context { get; private set; }
+
+    }
+
+    public static class Symbolization
+    {
+        public static SymbolizationCore Build(string file)
+        {
+            return new SymbolizationCore(new(file));
+        }
+
+        public static SymbolizationContext Execute(string commandsBlock)
+        {
+            SymbolizationContext context = new();
+            context.Execute(commandsBlock);
+            return context;
+        }
+
+        public static SymbolizationContext Execute(SymbolizationContext forward,string commandsBlock)
+        {
+            SymbolizationContext context = new(forward);
+            context.Execute(commandsBlock);
+            return context;
+        }
+    }
+}