title: Input should be equal to a list, but isn't
body: <p>A friend gave me the idea to write a program that asks you English words and you have to translate them in German and reverse. </p>
  
  <p>So the program asks a word and checks the input if it matches the actual translation.</p>
  
  <p>So the user gives an input of which Unit he/she wants to study. This input is stored in a variable. Now I have a list of the words of Unit 1. Then the program randomly chooses a word in the List. This word is then printed and the user enters his answer. Then using .index I find the position of the word asked and search for the same position in a second list. </p>
  
  <p>My problem is that the Unit input is seen as a string instead of being one of the lists I made. So then the user just gets asked for letter from this input. </p>
  
  <p>I want to somehow have this input equal the name of a list I have and work.(The Lists are actually larger, I cut them so it is a little easier to read)</p>
  
  <p>The code is here:</p>
  
  <pre><code>import random
  
  U1_E = ["consider (sb) to be …","describe (sb) as ...","proud to + infinitive"
      ]
  U1_D = ["erachten, wähnen","erachten, wähnen","beschreiben"
      ]
  U5_E = ["confortable","crowded","delicious","efficient","fashionable",
      ]                                                      
  U5_D = ["bequem","überfüllt","köstlich","effizient","modisch"
      ]                                                       
  Num = ["first","second","third","forth","fifth","sixth","7th","8th","9th",
      ]                                                     
  Unit_Eng = ["U1_E","U2_E","U3_E","U4_E","U5_E","U6_E","U7_E","U8_E"
      ]                                                       
  good_points = 0                                            
  bad_points = 0                                              
  Name_of_Agent = input("Can you please give me your name?")  
  Select_Unit = input(Name_of_Agent + ",which Unit would you like to train?    [Ux_E/Ux_D]")  
  Num_of_Words = int(input("How many words would you like?")) 
  
  
  if (Select_Unit in Unit_Eng):
      for i in range(0,Num_of_Words):                             
          Word_E = random.choice(Select_Unit)                    
          Select_Unit_oposite = Select_Unit[:3] + "D"             
          Word_D = Select_Unit_oposite[Select_Unit.index(Word_E)] 
          if (input("The "+Num[i]+" Word is:"+Word_E+":") == Word_D):      
              print("Well done, you got it right!")               
              good_points = good_points + 1                      
          else:
              print("The word you gave is wrong, the right answer is:",   Word_D)    
              bad_points = bad_points + 1                                       
      print("Your total score is:",good_points-    bad_points)                       
  
  
  input("Press Enter to close the program")
  </code></pre>