Deduplication of Python List!

import random
import tkinter

# Group draw function
def lotto():
    teams = [
        {'Group 1': [Kim Il-il', '2-3-4, '3-4-5, '987']}
        {'Group 2: Lee Mingi', 'Han Yeseul', 'Jang Dong-gun', 'Lee Byung-heon']
        {'Article 3:' Lee Mi-sun', 'Gumiho', 'Shin-chan', 'Kim Cheol-soo',
        {'Article 4:'Shin Hyung-man', 'No Jin-gu', 'Tung-tung', 'Kim Gae-dung',
        {'Article 5: Hong Gil-dong', 'Kim Gana', 'Lee Shrimp', 'Yoo Mi-rae', 'Nam Beauty']}
        {'Group 6:'Corona', 'Cho Draw', 'Park Namu', 'Kim Seobang', 'Gang Daebak']
    ]

    team = random.choice(teams) #Team draw. Return is dictionary
    leader = list(team.keys())

    textts = leader[0] + '\n' + str(team[leader[0]]) + '\n' + "Team: {0}".format(
        team[leader[0][0]) + '\n' + f' presenter: {random.choice(team[leader[0])}}'
    lbl_people.config(text = texts)
    #print(texts)

# Invoke the lotto function when an event occurs when the enter key is pressed
def lotto_enter(ev):
    lotto()

# Main function.Front end
if __name__ == '__main__':
    win = tkinter.Tk() # Create Window
    win.title ("Health and Medical Information Project")
    win.geometry("400x150")

    # Label, button generation, button associated with lotto function
    lbl_people = tkinter.Label (text="presentation draw")
    btn_lotto=tkinter.Button (text="group draw", bg="yellow", fg="green", command=lotto)

    # Enter key processing
    win.bind('<Return>', lotto_enter)

    # Attach labels and buttons to windows
    lbl_people.pack()
    btn_lotto.pack(fill='x')

    li = ["Group 1", "Group 2", "Group 3", "Group 4", "Group 5", "Group 6"]
    choiceList = random.choice(li)


    win.mainloop()