diff --git a/.gitignore b/.gitignore
index 68fc24d..651c212 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,6 @@ models/
 include/
 ModelGenerator/
 
+
+# Python virtual environment
+.venv/
diff --git a/postype.go b/postype.go
index 1c5980b..a644c97 100644
--- a/postype.go
+++ b/postype.go
@@ -10,75 +10,75 @@ import "fmt"
 type POSType string
 
 const (
-	POS_UNKNOWN   POSType = "UN"
-	POS_NNG       POSType = "NNG"
-	POS_NNP       POSType = "NNP"
-	POS_NNB       POSType = "NNB"
-	POS_VV        POSType = "VV"
-	POS_VA        POSType = "VA"
-	POS_MAG       POSType = "MAG"
-	POS_NR        POSType = "NR"
-	POS_NP        POSType = "NP"
-	POS_VX        POSType = "VX"
-	POS_MM        POSType = "MM"
-	POS_MAJ       POSType = "MAJ"
-	POS_IC        POSType = "IC"
-	POS_XPN       POSType = "XPN"
-	POS_XSN       POSType = "XSN"
-	POS_XSV       POSType = "XSV"
-	POS_XSA       POSType = "XSA"
-	POS_XSM       POSType = "XSM"
-	POS_XR        POSType = "XR"
-	POS_VCP       POSType = "VCP"
-	POS_VCN       POSType = "VCN"
-	POS_SF        POSType = "SF"
-	POS_SP        POSType = "SP"
-	POS_SS        POSType = "SS"
-	POS_SSO       POSType = "SSO"
-	POS_SSC       POSType = "SSC"
-	POS_SE        POSType = "SE"
-	POS_SO        POSType = "SO"
-	POS_SW        POSType = "SW"
-	POS_SB        POSType = "SB"
-	POS_SL        POSType = "SL"
-	POS_SH        POSType = "SH"
-	POS_SN        POSType = "SN"
-	POS_W_URL     POSType = "W_URL"
-	POS_W_EMAIL   POSType = "W_EMAIL"
+	POS_UNKNOWN POSType = "UN"
+	POS_NNG POSType = "NNG"
+	POS_NNP POSType = "NNP"
+	POS_NNB POSType = "NNB"
+	POS_VV POSType = "VV"
+	POS_VA POSType = "VA"
+	POS_MAG POSType = "MAG"
+	POS_NR POSType = "NR"
+	POS_NP POSType = "NP"
+	POS_VX POSType = "VX"
+	POS_MM POSType = "MM"
+	POS_MAJ POSType = "MAJ"
+	POS_IC POSType = "IC"
+	POS_XPN POSType = "XPN"
+	POS_XSN POSType = "XSN"
+	POS_XSV POSType = "XSV"
+	POS_XSA POSType = "XSA"
+	POS_XSM POSType = "XSM"
+	POS_XR POSType = "XR"
+	POS_VCP POSType = "VCP"
+	POS_VCN POSType = "VCN"
+	POS_SF POSType = "SF"
+	POS_SP POSType = "SP"
+	POS_SS POSType = "SS"
+	POS_SSO POSType = "SSO"
+	POS_SSC POSType = "SSC"
+	POS_SE POSType = "SE"
+	POS_SO POSType = "SO"
+	POS_SW POSType = "SW"
+	POS_SB POSType = "SB"
+	POS_SL POSType = "SL"
+	POS_SH POSType = "SH"
+	POS_SN POSType = "SN"
+	POS_W_URL POSType = "W_URL"
+	POS_W_EMAIL POSType = "W_EMAIL"
 	POS_W_MENTION POSType = "W_MENTION"
 	POS_W_HASHTAG POSType = "W_HASHTAG"
-	POS_W_SERIAL  POSType = "W_SERIAL"
-	POS_W_EMOJI   POSType = "W_EMOJI"
-	POS_JKS       POSType = "JKS"
-	POS_JKC       POSType = "JKC"
-	POS_JKG       POSType = "JKG"
-	POS_JKO       POSType = "JKO"
-	POS_JKB       POSType = "JKB"
-	POS_JKV       POSType = "JKV"
-	POS_JKQ       POSType = "JKQ"
-	POS_JX        POSType = "JX"
-	POS_JC        POSType = "JC"
-	POS_EP        POSType = "EP"
-	POS_EF        POSType = "EF"
-	POS_EC        POSType = "EC"
-	POS_ETN       POSType = "ETN"
-	POS_ETM       POSType = "ETM"
-	POS_Z_CODA    POSType = "Z_CODA"
-	POS_Z_SIOT    POSType = "Z_SIOT"
-	POS_USER0     POSType = "USER0"
-	POS_USER1     POSType = "USER1"
-	POS_USER2     POSType = "USER2"
-	POS_USER3     POSType = "USER3"
-	POS_USER4     POSType = "USER4"
-	POS_P         POSType = "P"
-	POS_PV        POSType = "P"
-	POS_PA        POSType = "P"
-	POS_VV_I      POSType = "VV-I"
-	POS_VA_I      POSType = "VA-I"
-	POS_VX_I      POSType = "VX-I"
-	POS_XSA_I     POSType = "XSA-I"
-	POS_PV_I      POSType = "PV-I"
-	POS_PA_I      POSType = "PA-I"
+	POS_W_SERIAL POSType = "W_SERIAL"
+	POS_W_EMOJI POSType = "W_EMOJI"
+	POS_JKS POSType = "JKS"
+	POS_JKC POSType = "JKC"
+	POS_JKG POSType = "JKG"
+	POS_JKO POSType = "JKO"
+	POS_JKB POSType = "JKB"
+	POS_JKV POSType = "JKV"
+	POS_JKQ POSType = "JKQ"
+	POS_JX POSType = "JX"
+	POS_JC POSType = "JC"
+	POS_EP POSType = "EP"
+	POS_EF POSType = "EF"
+	POS_EC POSType = "EC"
+	POS_ETN POSType = "ETN"
+	POS_ETM POSType = "ETM"
+	POS_Z_CODA POSType = "Z_CODA"
+	POS_Z_SIOT POSType = "Z_SIOT"
+	POS_USER0 POSType = "USER0"
+	POS_USER1 POSType = "USER1"
+	POS_USER2 POSType = "USER2"
+	POS_USER3 POSType = "USER3"
+	POS_USER4 POSType = "USER4"
+	POS_P POSType = "P"
+	POS_PV POSType = "P"
+	POS_PA POSType = "P"
+	POS_VV_I POSType = "VV-I"
+	POS_VA_I POSType = "VA-I"
+	POS_VX_I POSType = "VX-I"
+	POS_XSA_I POSType = "XSA-I"
+	POS_PV_I POSType = "PV-I"
+	POS_PA_I POSType = "PA-I"
 )
 
 func (p POSType) isValid() bool {
@@ -145,6 +145,8 @@ func (p POSType) isValid() bool {
 		POS_USER3,
 		POS_USER4,
 		POS_P,
+		POS_PV,
+		POS_PA,
 		POS_VV_I,
 		POS_VA_I,
 		POS_VX_I,
@@ -164,4 +166,4 @@ func ParsePOSType(t string) (POSType, error) {
 		return POS_UNKNOWN, fmt.Errorf("POS type parse err. input type: %s", t)
 	}
 	return pos, nil
-}
+}
\ No newline at end of file