python homework

liste = {"hallo" : "hello" ,"wie" : "how" ,"geht" : "how/well" ,"es" : "it" , "dir": "you"}

def tokenize(sentence):
 tokens = []
 for word in sentence.split():
  if word[-1] in ".,!?;":
   tokens.extend([word[:-1], word[-1]])
  else:
   tokens.append(word)
 return tokens





lang = liste
def detect_pos(sentence):
    shorttoken= tokenize(sentence)
    for i in sentence:
     if lang in shorttoken:
        finden = shorttoken.index(liste.keys(0))
        if liste.values(shorttoken[finden]):
            return "hello"
        elif liste.values(shorttoken[finden +1]):
            return "how"

        else: return print("unkown")

if __name__ == '__main__':


 detect_pos("hallo")