Пробема с морфологией слов

    import pymorphy2
    morph = pymorphy2.MorphAnalyzer()
    
    with open("cities.json", encoding='utf-8') as my_file:
        cities = json.load(my_file)
 
    list_cities = []
 
    for i in range(len(cities['city'])):
        for k, v in cities['city'][i].items():
            if k == 'name':
                if v == 'Тукуман':
                    print('Тукуман')
                else:
                    list_cities.append(v)
 
    dict_cities = {}
    dict_cities_list = []
 
 
    for i in range(len(list_cities)):
        m1 = morph.parse(list_cities[i])[0].normal_form
        m2 = morph.parse(list_cities[i])[0].inflect({'gent'}).word
        m3 = morph.parse(list_cities[i])[0].inflect({'datv'}).word
        m4 = morph.parse(list_cities[i])[0].inflect({'accs'}).word
        m5 = morph.parse(list_cities[i])[0].inflect({'ablt'}).word
        m6 = morph.parse(list_cities[i])[0].inflect({'loct'}).word
        m7 = morph.parse(list_cities[i])[0].inflect({'voct'}).word
        m8 = morph.parse(list_cities[i])[0].inflect({'gen2'}).word
        m9 = morph.parse(list_cities[i])[0].inflect({'acc2'}).word
        m10 = morph.parse(list_cities[i])[0].inflect({'loc2'}).word
        dict_cities_list.append(m1)
        dict_cities_list.append(m2)
        dict_cities_list.append(m3)
        dict_cities_list.append(m4)
        dict_cities_list.append(m5)
        dict_cities_list.append(m6)
        dict_cities_list.append(m7)
        dict_cities_list.append(m8)
        dict_cities_list.append(m9)
        dict_cities_list.append(m10)
        dict_cities[list_cities[i]] = dict_cities_list