diff --git a/u5/kindergarten_garden.py b/u5/kindergarten_garden.py
index 101def1..bb43c2b 100644
--- a/u5/kindergarten_garden.py
+++ b/u5/kindergarten_garden.py
@@ -1,15 +1,16 @@
 class NoSuchStudentException(Exception):
+    """Виняток, що викликається, якщо ім'я учня не знайдено в саду."""
     pass
 
 
-class Garden():
-
+class Garden:
+    # Правильна назва константи з літерою 'a' (DEFAULT)
     DEFAULT_STUDENTS = [
-        "Alena", "Boris", "Cyril", "Daniel",
-        "Eva", "František", "Gitka", "Helena",
+        "Alena", "Boris", "Cyril", "Daniel", 
+        "Eva", "František", "Gitka", "Helena", 
         "Ivana", "Jozef", "Karol", "Ladislav"
     ]
-
+    
     PLANT_MAP = {
         "G": "Tráva",
         "C": "Ďatelina",
@@ -17,28 +18,28 @@ class Garden():
         "V": "Fialky"
     }
 
-    def __init__(self, diagrm : str, students : list[str] = None):
-        self.diagrm: str = diagrm
-        self.rows: str = diagrm.splitlines()
-
+    def __init__(self, diagram: str, students: list[str] = None):
+        self.rows = diagram.splitlines()
+        
+        
         if students is not None:
             self.students = sorted(students)
         else:
             self.students = self.DEFAULT_STUDENTS
 
-    def plants(self, students_name : str):
-        if students_name not in self.students:
+    def plants(self, student_name: str) -> list[str]:
+        if student_name not in self.students:
             raise NoSuchStudentException(f"Učeň {student_name} neexistuje v tomto záhone.")
-
-        students_index = self.students.index(students_name)
-
+        
+        student_index = self.students.index(student_name)
+        
         start_col = student_index * 2
-
+        
         top_plants = self.rows[0][start_col:start_col + 2]
         bottom_plants = self.rows[1][start_col:start_col + 2]
-
+        
         raw_chars = list(top_plants + bottom_plants)
-
+        
         result = [self.PLANT_MAP[char] for char in raw_chars]
-
+        
         return result
\ No newline at end of file