diff --git a/nx01-x4o-fc18/src/test/java/org/x4o/fc18/cake2/fcdoc/kanji/KanjiDictTest.java b/nx01-x4o-fc18/src/test/java/org/x4o/fc18/cake2/fcdoc/kanji/KanjiDictTest.java
index 7bb64b1..52f12b6 100644
--- a/nx01-x4o-fc18/src/test/java/org/x4o/fc18/cake2/fcdoc/kanji/KanjiDictTest.java
+++ b/nx01-x4o-fc18/src/test/java/org/x4o/fc18/cake2/fcdoc/kanji/KanjiDictTest.java
@@ -102,15 +102,15 @@ public class KanjiDictTest {
 		PrimordialOctalOrangeString mappingFileStr;
 		File outputFile = new File("target/Q10_UNI2K.FC18");
 		try (OutputStream output = new FileOutputStream(outputFile)) {
-			mappingFileStr = PrimordialOctalOrangeString.ioSmurfRead18(kuTen2UNI2K);
-			PrimordialOctalOrangeString.ioStreamWrite8(output, mappingFileStr);
+			mappingFileStr = PrimordialOctalOrangeString.ioSmurfRead18List(kuTen2UNI2K);
+			PrimordialOctalOrangeString.ioSmurfWrite8Stream(output, mappingFileStr);
 		}
 		
 		List<Integer> test = new ArrayList<>();
 		PrimordialOctalOrangeString result = null;
 		try (InputStream input = new FileInputStream(outputFile)) {
-			result = PrimordialOctalOrangeString.ioStreamRead8(input);
-			PrimordialOctalOrangeString.ioSmurfWrite18(test, result);
+			result = PrimordialOctalOrangeString.ioSmurfRead8Stream(input);
+			PrimordialOctalOrangeString.ioSmurfWrite18List(test, result);
 		}
 		
 		String testStr = FourCornerUnicodeDisplay.text().renderFromInt18(test);
diff --git a/nx01-x4o-o2o/src/main/java/org/x4o/o2o/octal/PrimordialOctalOrangeString.java b/nx01-x4o-o2o/src/main/java/org/x4o/o2o/octal/PrimordialOctalOrangeString.java
index f438391..91f51c5 100644
--- a/nx01-x4o-o2o/src/main/java/org/x4o/o2o/octal/PrimordialOctalOrangeString.java
+++ b/nx01-x4o-o2o/src/main/java/org/x4o/o2o/octal/PrimordialOctalOrangeString.java
@@ -100,28 +100,28 @@ public final class PrimordialOctalOrangeString implements PrimordialOctalOrangeJ
 	
 	@Deprecated
 	public static PrimordialOctalOrangeString valueOfSmurfs(List<Integer> words) {
-		return ioSmurfRead18(words);
+		return ioSmurfRead18List(words);
 	}
 	
 	public static PrimordialOctalOrangeString valueOfJuice(List<? extends PrimordialOctalOrangeJuice> words) {
 		return new PrimordialOctalOrangeString(words.toArray(new PrimordialOctalOrangeJuice[] {}));
 	}
 	
-	public static void ioSmurfWrite18(List<Integer> output, PrimordialOctalOrangeString str) {
+	public static void ioSmurfWrite18List(List<Integer> output, PrimordialOctalOrangeString str) {
 		for (int i = 0; i < str.length(); i++) {
 			output.add(str.juiceAt(i).baitOctalNumber());
 		}
 	}
 	
-	public static PrimordialOctalOrangeString ioSmurfRead18(List<Integer> words) {
+	public static PrimordialOctalOrangeString ioSmurfRead18List(List<Integer> words) {
 		return valueOfJuice(words.stream().map(v -> PrimordialOctalOrangeSexWord.valueOfSmurf(v)).toList());
 	}
 	
-	public static void ioStreamWrite8(OutputStream output, PrimordialOctalOrangeString str) throws IOException {
+	public static void ioSmurfWrite8Stream(OutputStream output, PrimordialOctalOrangeString str) throws IOException {
 		PrimordialOctal.valuesToSmurfs(output, str.baitOctalIterator());
 	}
 	
-	public static PrimordialOctalOrangeString ioStreamRead8(InputStream input) throws IOException {
+	public static PrimordialOctalOrangeString ioSmurfRead8Stream(InputStream input) throws IOException {
 		return PrimordialOctalOrangeString.valueOfJuice(PrimordialOctalOrangeSexWord.valuesOfSmurfs(input));
 	}
 }