diff --git a/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift b/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
index 0fe67c9f..f00fd753 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
@@ -31,6 +31,10 @@ extension vChewing {
     var keyValueMap: [String: [Megrez.KeyValuePair]] = [:]
     var theData: String = ""
 
+    public var count: Int {
+      keyValueMap.count
+    }
+
     public init() {
       keyValueMap = [:]
       theData = ""
diff --git a/Source/Modules/LangModelRelated/SubLMs/lmCore.swift b/Source/Modules/LangModelRelated/SubLMs/lmCore.swift
index 8ab55d5c..99688a5d 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmCore.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmCore.swift
@@ -35,6 +35,10 @@ extension vChewing {
     var defaultScore: Double = 0
     var shouldForceDefaultScore: Bool = false
 
+    public var count: Int {
+      keyValueScoreMap.count
+    }
+
     public init(
       reverse: Bool = false, consolidate: Bool = false, defaultScore scoreDefault: Double = 0,
       forceDefaultScore: Bool = false
diff --git a/Source/Modules/LangModelRelated/SubLMs/lmLite.swift b/Source/Modules/LangModelRelated/SubLMs/lmLite.swift
index 23156d93..f6be3a06 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmLite.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmLite.swift
@@ -32,6 +32,10 @@ extension vChewing {
     var theData: String = ""
     var allowConsolidation = false
 
+    public var count: Int {
+      keyValueMap.count
+    }
+
     public init(consolidate: Bool = false) {
       keyValueMap = [:]
       theData = ""
diff --git a/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift b/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift
index 30337af6..387c0e65 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift
@@ -31,6 +31,10 @@ extension vChewing {
     var keyValueMap: [String: String] = [:]
     var theData: String = ""
 
+    public var count: Int {
+      keyValueMap.count
+    }
+
     public init() {
       keyValueMap = [:]
       theData = ""