diff --git a/examples/sentiment/go.mod b/examples/sentiment/go.mod
index 5f1fbb1..8e28665 100644
--- a/examples/sentiment/go.mod
+++ b/examples/sentiment/go.mod
@@ -4,6 +4,4 @@ go 1.20
 
 require github.com/maiqingqiang/typechat-go v1.0.0
 
-require golang.org/x/text v0.12.0 // indirect
-
 replace github.com/maiqingqiang/typechat-go => ../../
diff --git a/examples/sentiment/go.sum b/examples/sentiment/go.sum
index 09c64a2..e69de29 100644
--- a/examples/sentiment/go.sum
+++ b/examples/sentiment/go.sum
@@ -1,2 +0,0 @@
-golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
-golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
diff --git a/examples/sentiment/run.png b/examples/sentiment/run.png
index e829e80..5022a34 100644
Binary files a/examples/sentiment/run.png and b/examples/sentiment/run.png differ
diff --git a/examples/sentiment/sentiment_schema.go b/examples/sentiment/sentiment_schema.go
index bdbea86..8f2723a 100644
--- a/examples/sentiment/sentiment_schema.go
+++ b/examples/sentiment/sentiment_schema.go
@@ -1,15 +1,20 @@
+// The following is a schema definition for determining the sentiment of a some user input.
+
 package main
 
 import "fmt"
 
+// Sentiment Define the enum type, this value is int
 type Sentiment int
 
+// Define the enum constants for Sentiment
 const (
 	Negative Sentiment = iota
 	Neutral
 	Positive
 )
 
+// Use switch statement to handle the enum type for Sentiment
 func (s Sentiment) String() string {
 	switch s {
 	case Negative:
@@ -24,7 +29,7 @@ func (s Sentiment) String() string {
 }
 
 type SentimentResponse struct {
-	Sentiment int `json:"sentiment"`
+	Sentiment Sentiment `json:"sentiment"` // The sentiment of the Sentiment enum type
 }
 
 func (s SentimentResponse) String() string {