Hi, this is my code, as mentioned above. I get the error of Element Odoo has extra content.

Here is my XML code:

id="view_college_students_form" model="ir.ui.view">
        name="name">college.students.form
        name="model">college.students
        name="arch" type="xml">
            string="College Students">
                
                    string="College Students information">
                        
                            name="name"/>
                            name="stu_class"/>
                        
                        
                            name="address"/>
                            name="phone_number"/>
                        
                        
                            name="blood_group"/>
                            name="dob"/>
                            name="student_id"/>
                        
                    
                    
                        string="student academic info">
                            name="stu_lines_id">
                                string="Line item">
                                    name="subject"/>
                                    name="mark"/>
                                    name="grade"/>
                                
                            
                        
                    
                
            
            
                  
                      name="subject"/>
                      name="grade"/>
                  
                    name="marks"/>

Can someone review this and solve this?