text: class BaseRule:
      name = ""
      must_contain_all = []
      cannot_contain = []
  
  
  class Vegetarian(BaseRule):
      name = "vegetarian"
      cannot_contain = ['maso']
  
  
  class Vegan(BaseRule):
      name = "vegan"
      cannot_contain = ['maso', 'vejce', 'syr', 'mleko', 'maslo', 'tvaroh']
  