diff --git a/Source/Modules/LangModelRelated/LMInstantiator.swift b/Source/Modules/LangModelRelated/LMInstantiator.swift
index 96e2bf07..21b4164d 100644
--- a/Source/Modules/LangModelRelated/LMInstantiator.swift
+++ b/Source/Modules/LangModelRelated/LMInstantiator.swift
@@ -248,14 +248,6 @@ extension vChewing {
       return !unigramsFor(key: key).isEmpty
     }
 
-    public func associatedPhrasesFor(key: String) -> [String] {
-      lmAssociates.valuesFor(key: key)
-    }
-
-    public func hasAssociatedPhrasesFor(key: String) -> Bool {
-      lmAssociates.hasValuesFor(key: key)
-    }
-
     public func associatedPhrasesFor(pair: Megrez.KeyValuePaired) -> [String] {
       lmAssociates.valuesFor(pair: pair)
     }
diff --git a/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift b/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
index bc0776e7..47f15b8c 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
@@ -94,22 +94,6 @@ extension vChewing {
       // This function will be implemented only if further hard-necessity comes.
     }
 
-    public func valuesFor(key: String) -> [String] {
-      var pairs: [String] = []
-      if let arrRangeRecords: [(Range<String.Index>, Int)] = rangeMap[key] {
-        for (netaRange, index) in arrRangeRecords {
-          let neta = strData[netaRange].split(separator: " ")
-          let theValue: String = .init(neta[index])
-          pairs.append(theValue)
-        }
-      }
-      return pairs
-    }
-
-    public func hasValuesFor(key: String) -> Bool {
-      rangeMap[key] != nil
-    }
-
     public func valuesFor(pair: Megrez.KeyValuePaired) -> [String] {
       var pairs: [String] = []
       if let arrRangeRecords: [(Range<String.Index>, Int)] = rangeMap[pair.toNGramKey] {