请列举出《哈利·波特》系列中的主要角色，按照性别和学院分类，并按照名字首字母排序。
user
{
  "male": {
    "Gryffindor": ["Colin Creevey", "Dean Thomas", "Fred Weasley", "George Weasley", "Harry Potter", "James Potter", "Lee Jordan", "Neville Longbottom", "Peter Pettigrew", "Remus Lupin", "Ronald Weasley", "Seamus Finnigan", "Arthur Weasley", "Bill Weasley", "Charlie Weasley"],
    "Hufflepuff": ["Cedric Diggory", "Justin Finch-Fletchley", "Hengist of Woodcroft", "Zacharias Smith"],
    "Ravenclaw": ["Cho Chang", "Anthony Goldstein", "Terry Boot", "Roger Davies", "Luna Lovegood", "Michael Corner"],
    "Slytherin": ["Blaise Zabini", "Gregory Goyle", "Lucius Malfoy", "Draco Malfoy", "Theodore Nott", "Severus Snape", "Walden Macnair"],
    "Uncertain": ["Aragog", "Albus Dumbledore", "Nicholas Flamel", "Gellert Grindelwald", "Hagrid", "Vernon Dursley", "Dudley Dursley", "Tom Riddle"]
  },
  "female": {
    "Gryffindor": ["Angelina Johnson", "Katie Bell", "Lavender Brown", "Parvati Patil", "Granger Hermione", "Pansy Parkinson", "Molly Weasley"],
    "Hufflepuff": ["Fatima Feteha", "Hannah Abbott"],
    "Ravenclaw": ["Penelope Clearwater", "Isobel MacDougal"],
    "Slytherin": ["Millicent Bulstrode", "Pansy Parkinson", "Eloise Midgen", "Tracey Davis", "Merope Gaunt"],
    "Uncertain": ["Dolores Umbridge", "Petunia Dursley"]
  }
}
assistant