diff --git a/internal/services/story_service/cleaners.go b/internal/services/story_service/cleaners.go
new file mode 100644
index 0000000..ff11278
--- /dev/null
+++ b/internal/services/story_service/cleaners.go
@@ -0,0 +1,39 @@
+package story_service
+
+import "strings"
+
+var (
+	replaceMap = map[string]string{
+		"a": "а",
+		"e": "е",
+		"o": "о",
+		"c": "с",
+		"p": "р",
+		"x": "х",
+		"y": "у",
+		"k": "к",
+		"m": "м",
+		"t": "т",
+		"h": "н",
+		"b": "в",
+		"u": "и",
+	}
+)
+
+func clearMatch(s string) string {
+	s = strings.TrimPrefix(s, "(")
+	s = strings.TrimPrefix(s, "[")
+	s = strings.TrimSuffix(s, ")")
+	s = strings.TrimSuffix(s, "]")
+	return clearCode(s)
+}
+
+func clearCode(code string) string {
+	code = strings.ToLower(code)
+	code = strings.TrimSpace(code)
+	code = strings.ReplaceAll(code, "-", "")
+	for latin, cyrillic := range replaceMap {
+		code = strings.ReplaceAll(code, latin, cyrillic)
+	}
+	return code
+}
diff --git a/internal/services/story_service/data_models.go b/internal/services/story_service/data_models.go
new file mode 100644
index 0000000..ab6e6da
--- /dev/null
+++ b/internal/services/story_service/data_models.go
@@ -0,0 +1,16 @@
+package story_service
+
+type Story struct {
+	Places []*Place `json:"places"`
+}
+
+type Place struct {
+	Code         string         `json:"code"`
+	Name         string         `json:"name"`
+	Text         string         `json:"text"`
+	Applications []*Application `json:"applications"`
+}
+
+type Application struct {
+	Name string `json:"name"`
+}
diff --git a/internal/services/story_service/dto_models.go b/internal/services/story_service/dto_models.go
new file mode 100644
index 0000000..ab3c407
--- /dev/null
+++ b/internal/services/story_service/dto_models.go
@@ -0,0 +1,23 @@
+package story_service
+
+type Graph struct {
+	Nodes []*GraphNode
+	Edges []*GraphEdge
+}
+
+type GraphNode struct {
+	ID           int32
+	Label        string
+	Name         string
+	Text         string
+	Applications []*GraphApplication
+}
+
+type GraphEdge struct {
+	From int32
+	To   int32
+}
+
+type GraphApplication struct {
+	Name string
+}
diff --git a/internal/services/story_service/service.go b/internal/services/story_service/service.go
index 99372fc..f820010 100644
--- a/internal/services/story_service/service.go
+++ b/internal/services/story_service/service.go
@@ -10,61 +10,6 @@ import (
 	"strings"
 )
 
-var (
-	replaceMap = map[string]string{
-		"a": "а",
-		"e": "е",
-		"o": "о",
-		"c": "с",
-		"p": "р",
-		"x": "х",
-		"y": "у",
-		"k": "к",
-		"m": "м",
-		"t": "т",
-		"h": "н",
-		"b": "в",
-		"u": "и",
-	}
-)
-
-type Story struct {
-	Places []*Place `json:"places"`
-}
-
-type Place struct {
-	Code         string         `json:"code"`
-	Name         string         `json:"name"`
-	Text         string         `json:"text"`
-	Applications []*Application `json:"applications"`
-}
-
-type Application struct {
-	Name string `json:"name"`
-}
-
-type Graph struct {
-	Nodes []*GraphNode
-	Edges []*GraphEdge
-}
-
-type GraphNode struct {
-	ID           int32
-	Label        string
-	Name         string
-	Text         string
-	Applications []*GraphApplication
-}
-
-type GraphEdge struct {
-	From int32
-	To   int32
-}
-
-type GraphApplication struct {
-	Name string
-}
-
 type StoryService struct {
 	story *Story
 }
@@ -141,10 +86,13 @@ func (s *StoryService) GetGraph(ctx context.Context) *Graph {
 		matches := re.FindAllString(place.Text, -1)
 
 		for _, match := range matches {
-			edges = append(edges, &GraphEdge{
-				From: m[clearCode(place.Code)],
-				To:   m[clearMatch(match)],
-			})
+			edges = append(
+				edges,
+				&GraphEdge{
+					From: m[clearCode(place.Code)],
+					To:   m[clearMatch(match)],
+				},
+			)
 		}
 	}
 
@@ -153,21 +101,3 @@ func (s *StoryService) GetGraph(ctx context.Context) *Graph {
 		Edges: edges,
 	}
 }
-
-func clearMatch(s string) string {
-	s = strings.TrimPrefix(s, "(")
-	s = strings.TrimPrefix(s, "[")
-	s = strings.TrimSuffix(s, ")")
-	s = strings.TrimSuffix(s, "]")
-	return clearCode(s)
-}
-
-func clearCode(code string) string {
-	code = strings.ToLower(code)
-	code = strings.TrimSpace(code)
-	code = strings.ReplaceAll(code, "-", "")
-	for latin, cyrillic := range replaceMap {
-		code = strings.ReplaceAll(code, latin, cyrillic)
-	}
-	return code
-}