itsmeknt

  var favoriteFoodsOfFurryPetsOfFamousAuthorsOfLongChineseBooksAboutHistory = books[i].author.pets[j].favoriteFood.distinct()
    where i = pagecount > 100,
              language == "Chinese",
              subject == "History",
              author.mentions > 10_000
    where j = is_furry == True

  # Functional approach
  
  var favoriteFoodsOfFurryPetsOfFamousAuthorsOfLongChineseBooksAboutHistory = books
    .filter(book => 
       book.pageCount > 100 and 
       book.language == "Chinese" and 
       book.subject == "History" and
       book.author.mentions > 10_000
    )
    .flatMap(book => book.author.pets)
    .filter(pet => pet.is_furry)
    .map(pet => pet.favoriteFood)
    .distinct()

  # Procedural approach
  
  var favoriteFoodsOfFurryPetsOfFamousAuthorsOfLongChineseBooksAboutHistory = set()
  for book in books:
    if len(book.pageCount > 100) and
       book.language == "Chinese" and
       book.subject == "History" and
       book.author.mentions > 10_000:
      for pet in book.author.pets:
        if pet.is_furry:
          favoriteFoodsOfFurryPetsOfFamousAuthorsOfLongChineseBooksAboutHistory.add(pet.favoriteFood)

  # Comprehension approach
  
  var favoriteFoodsOfFurryPetsOfFamousAuthorsOfLongChineseBooksAboutHistory = {
    pet.favoriteFood for pet in
      pets for pets in 
        [book.author.pets for book in 
          books if len(book.pageCount > 100) and
                   book.language == "Chinese" and
                   book.subject == "History" and
                   book.author.mentions > 10_000]
    if pet.is_furry
  }