user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: what are the four harry potter house names? 
Knowledge Triplets: Harry Potter and the Half-Blood Prince, media_common.quotation_source.quotations, Time is making fools of us again.
Harry Potter and the Sorcerer's Stone, common.topic.notable_for, g.1256nnyvm
Harry Potter and the Deathly Hallows, common.topic.webpage, m.0b497nh
Harry Potter and the Order of the Phoenix, book.book.characters, James Potter
Harry Potter and the Order of the Phoenix, book.book.characters, Arabella Figg
Harry Potter and the Deathly Hallows (Harry Potter), book.book_edition.author_editor, J. K. Rowling
James Sirius Potter, fictional_universe.fictional_character.parents, Harry Potter
Harry Potter and the Goblet of Fire, book.book.characters, Ginny Weasley
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b6s_3jgg
Harry Potter and the Goblet of Fire, book.book.characters, Rubeus Hagrid
Harry Potter and the Order of the Phoenix, book.book.characters, Bellatrix Lestrange
Harry Potter and the Half-Blood Prince, book.book.characters, Lily Evans Potter
Harry Potter and the Deathly Hallows, common.topic.webpage, m.09xx1mt
Harry Potter and the Chamber of Secrets, book.book.characters, Lucius Malfoy
Harry Potter and the Half-Blood Prince, book.book.characters, Molly Weasley
Harry Potter and the Goblet of Fire, book.book.characters, Hermione Granger
Harry Potter and the Chamber of Secrets, book.book.characters, Ginny Weasley
Harry Potter and the Half-Blood Prince, book.book.characters, Percy Weasley
Harry Potter and the Order of the Phoenix, book.book.characters, Walburga Black
Harry Potter and the Deathly Hallows, common.topic.webpage, m.09w7pv0
Harry Potter and the Half-Blood Prince, book.book.characters, Jimmy Peakes
Harry Potter and the Half-Blood Prince, book.book.characters, Igor Karkaroff
Harry Potter, fictional_universe.fictional_universe.organizations, Slytherin House
Harry Potter and the Order of the Phoenix, book.book.characters, Gilderoy Lockhart
Harry Potter and the Order of the Phoenix, book.book.characters, Andromeda Tonks
m.09yd590, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Chamber of Secrets, book.book.characters, Fred Weasley
Harry Potter and the Prisoner of Azkaban, book.book.characters, James Potter
m.0b4771n, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Order of the Phoenix, book.book.editions, Harry Potter y La Orden del Fenix
Harry and the Potters, music.artist.track, The Fourth Triwizard Champion
Harry Potter and the Order of the Phoenix, book.book.characters, Sturgis Podmore
Harry Potter and the Prisoner of Azkaban, book.book.characters, Remus Lupin
Harry Potter and the Half-Blood Prince, book.book.characters, Dudley Dursley
Harry Potter and the Order of the Phoenix, book.book.characters, Charlie Weasley
Harry Potter and the Half-Blood Prince, book.book.characters, Draco Malfoy
m.03kzbz2, common.webpage.topic, Harry and the Potters
Gryffindor House, fictional_universe.fictional_organization.members, James Potter
Harry Potter and the Chamber of Secrets, book.book.characters, Vernon Dursley
m.0d5h9q2, common.webpage.topic, Harry and the Potters
Harry Potter and the Philosopher's Stone, common.topic.notable_for, g.12571_4g3
Harry and the Potters, common.topic.webpage, m.052bkn7
Harry Potter and the Half-Blood Prince, book.book.characters, g.122mr0bj
Harry Potter and the Order of the Phoenix, book.book.characters, Avery Jr.
Harry Potter and the Goblet of Fire, book.book.characters, Dean Thomas
Harry Potter and the Goblet of Fire, book.book.characters, Gilderoy Lockhart
Harry Potter and the Half-Blood Prince, common.topic.webpage, m.0b4707j
Harry Potter and the Chamber of Secrets, book.book.characters, James Potter
Harry and the Potters, common.topic.notable_types, Musical Group
Harry Potter and the Prisoner of Azkaban, base.schemastaging.context_name.pronunciation, g.125_n5yyb
m.0b48wy4, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Prisoner of Azkaban, book.book.characters, Professor Minerva McGonagall
Harry Potter and the Prisoner of Azkaban, book.book.characters, Mrs. Norris
Harry Potter and the Half-Blood Prince, common.topic.notable_types, Book
Harry Potter and the Deathly Hallows, common.topic.webpage, m.09xtlb5
Harry Potter and the Half-Blood Prince, book.book.characters, Cormac McLaggen
Harry and the Potters, symbols.namesake.named_after, Harry Potter
Harry Potter and the Half-Blood Prince, book.book.characters, Ginny Weasley
m.0b497nh, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Order of the Phoenix, book.book.characters, Justin Finch-Fletchley
Harry Potter and the Half-Blood Prince, book.book.characters, Petunia Evans Dursley
Harry Potter and the Chamber of Secrets, book.book.characters, Charlie Weasley
Cho Chang, fictional_universe.fictional_character.organizations, Ravenclaw House
Harry Potter, fictional_universe.fictional_character.children, James Sirius Potter
Harry Potter and the Goblet of Fire, book.book.characters, Avery Jr.
Harry Potter and the Half-Blood Prince, book.book.characters, g.121yb32s
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b6mp5yt4
Harry and the Potters, common.topic.webpage, m.0chc4l_
Harry Potter and the Deathly Hallows, book.book.editions, Harry Potter and the Deathly Hallows (Harry Potter)
Harry Potter and the Order of the Phoenix, book.book.characters, Fred Weasley
Harry Potter and the Order of the Phoenix, book.book.characters, Vernon Dursley
Harry Potter, symbols.name_source.namesakes, Harry and the Potters
Harry Potter and the Half-Blood Prince, book.book.characters, Luna Lovegood
Gryffindor House, base.harrypotter.hogwarts_house.traits, Courage
Harry Potter and the Half-Blood Prince, media_common.quotation_source.quotations, It is the unknown we fear when we look upon death and darkness, nothing more.
Harry Potter and the Philosopher's Stone, book.book.editions, Garri Potter I Filofskij Kamen
Harry Potter and the Goblet of Fire, book.book.characters, Rabastan Lestrange
Harry Potter and the Order of the Phoenix, book.book.characters, Remus Lupin
Harry Potter and the Half-Blood Prince, book.book.editions, Harry Potter y el Misterio del Príncipe
Harry Potter and the Half-Blood Prince, book.book.characters, Sybill Trelawney
Harry Potter and the Prisoner of Azkaban, book.book.characters, Vernon Dursley
Harry Potter and the Prisoner of Azkaban, book.book.characters, Lord Voldemort
Harry Potter and the Order of the Phoenix, book.book.characters, Arthur Weasley
Harry Potter and the Philosopher's Stone, book.book.editions, Harri Potter Maen Yr Athronydd
Harry Potter and the Deathly Hallows, common.topic.webpage, m.0b486hn
Harry Potter and the Chamber of Secrets, book.book.characters, Dudley Dursley
Harry Potter and the Half-Blood Prince, book.book.characters, Narcissa Malfoy
Harry Potter, fictional_universe.fictional_universe.organizations, Gryffindor House
Harry Potter and the Chamber of Secrets, book.book.characters, g.1233g0sk
Harry and the Potters, music.artist.track, The Foil (Malfoy)
Harry Potter and the Deathly Hallows (Harry Potter), book.book_edition.book, Harry Potter and the Deathly Hallows
Harry Potter and the Half-Blood Prince, book.book.characters, g.121315b0
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b62tgk0j
Harry Potter and the Half-Blood Prince, book.book.characters, Fleur Delacour
Harry Potter and the Half-Blood Prince, book.book.characters, Gilderoy Lockhart
Harry Potter and the Half-Blood Prince, base.schemastaging.context_name.pronunciation, g.125_qqqvc
Harry Potter and the Order of the Phoenix, book.book.characters, Dolores Umbridge
Harry Potter and the Deathly Hallows, common.topic.notable_for, g.125bc6t0s
Harry Potter and the Order of the Phoenix, book.book.characters, Ronald Weasley
Gryffindor House, base.harrypotter.hogwarts_house.house_animal, Lion
Harry Potter and the Order of the Phoenix, book.book.characters, Professor Minerva McGonagall
Harry Potter and the Half-Blood Prince, book.book.characters, Professor Filius Flitwick
Harry Potter and the Goblet of Fire, book.book.characters, Arthur Weasley
Harry Potter and the Prisoner of Azkaban, book.book.characters, George Weasley
Harry Potter and the Goblet of Fire, book.book.characters, Lucius Malfoy
Harry Potter and the Prisoner of Azkaban, book.book.characters, Professor Severus Snape
Harry Potter and the Order of the Phoenix, common.topic.webpage, m.09xjwtg
Harry Potter and the Half-Blood Prince, book.book.characters, Hermione Granger
Harry Potter and the Order of the Phoenix, book.book.characters, Mrs. Norris
Harry Potter and the Half-Blood Prince, book.book.characters, Eileen Prince
Harry Potter and the Prisoner of Azkaban, book.book.characters, Oliver Woods
Harry Potter and the Half-Blood Prince, media_common.quotation_source.quotations, When you have seen as much of life as I have, you will not underestimate the power of obsessive love.
Harry Potter and the Order of the Phoenix, book.book.characters, Professor Filius Flitwick
Harry Potter, fictional_universe.fictional_character.appears_in_these_fictional_universes, Michael Corner
Harry Potter and the Prisoner of Azkaban, book.book.characters, Draco Malfoy
Harry Potter and the Half-Blood Prince, book.book.characters, Mulciber
Harry Potter and the Prisoner of Azkaban, book.book.characters, Arthur Weasley
Harry Potter and the Order of the Phoenix, book.book.characters, Nymphadora Lupin
Harry Potter and the Order of the Phoenix, common.topic.notable_for, g.1259dk75g
Harry Potter, fictional_universe.fictional_character.parents, Lily Evans Potter
m.09w7pv0, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b6v4ybdd
Harry and the Potters, common.topic.article, m.04h574
Harry Potter and the Order of the Phoenix, book.book.characters, Sybill Trelawney
Harry Potter and the Chamber of Secrets, book.book.characters, Petunia Evans Dursley
Harry Potter and the Order of the Phoenix, book.book.characters, Sirius Black
Harry Potter and the Half-Blood Prince, book.book.characters, Rufus Scrimgeour
Harry Potter and the Half-Blood Prince, common.topic.webpage, m.09ygwwl
Harry Potter, common.topic.notable_for, g.1255jzkrn
Harry Potter and the Goblet of Fire, book.book.characters, Narcissa Malfoy
Harry Potter and the Half-Blood Prince, media_common.adapted_work.adaptations, Harry Potter and the Half-Blood Prince
Harry Potter and the Order of the Phoenix, book.book.characters, Lord Voldemort
Harry Potter and the Goblet of Fire, book.book.characters, Neville Longbottom
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b6b7c50g
Harry Potter and the Prisoner of Azkaban, book.book.characters, Dudley Dursley
Harry Potter and the Half-Blood Prince, book.book.characters, Arthur Weasley
Harry Potter, fictional_universe.fictional_setting.universe, Hogwarts School of Witchcraft and Wizardry
Harry Potter and the Order of the Phoenix, book.book.characters, Augustus Rookwood
Gryffindor House, fictional_universe.fictional_organization.members, Lily Evans Potter
Harry Potter and the Order of the Phoenix, book.book.characters, Professor Albus Dumbledore
Harry Potter and the Half-Blood Prince, book.book.characters, Ronald Weasley
Harry Potter and the Half-Blood Prince, book.book.characters, Susan Bones
Harry Potter and the Half-Blood Prince, book.book.characters, Nymphadora Lupin
Harry Potter and the Sorcerer's Stone, symbols.namesake.named_after, Harry Potter
Michael Corner, fictional_universe.fictional_character.organizations, Ravenclaw House
Harry Potter and the Deathly Hallows, common.topic.webpage, m.0b47c6z
Harry Potter and the Half-Blood Prince, book.book.characters, Fred Weasley
Harry Potter and the Order of the Phoenix, base.schemastaging.context_name.pronunciation, g.125_qty90
Harry Potter and the Order of the Phoenix, book.book.characters, Petunia Evans Dursley
Harry Potter and the Half-Blood Prince, book.book.characters, Bellatrix Lestrange
Harry Potter and the Deathly Hallows, base.schemastaging.context_name.pronunciation, g.125_lr2f6
Harry Potter and the Half-Blood Prince, book.book.characters, Remus Lupin
Harry Potter and the Goblet of Fire, book.book.characters, James Potter
Harry Potter and the Chamber of Secrets, book.book.characters, Neville Longbottom
Harry Potter and the Half-Blood Prince, book.book.characters, Dean Thomas
Harry Potter and the Goblet of Fire, book.book.characters, Petunia Evans Dursley
Harry Potter and the Deathly Hallows, common.topic.webpage, m.09xtg5f
Harry Potter and the Goblet of Fire, book.book.characters, Vincent Crabbe
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b6b5kv32
Harry Potter and the Half-Blood Prince, book.book.characters, Michael Corner
Harry Potter and the Half-Blood Prince, book.book.characters, Nott Sr.
Harry Potter and the Half-Blood Prince, book.book.characters, Vernon Dursley
Harry Potter, fictional_universe.fictional_universe.organizations, Hufflepuff House
Harry Potter and the Prisoner of Azkaban, book.book.characters, Neville Longbottom
Harry Potter and the Order of the Phoenix, book.book.characters, Regulus Black
Harry Potter and the Prisoner of Azkaban, book.book.characters, Marge Dursley
Harry Potter, fictional_universe.fictional_character.parents, James Potter
Harry Potter and the Prisoner of Azkaban, book.book.characters, Ronald Weasley
m.0b47c6z, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Philosopher's Stone, media_common.quotation_source.quotations, Fear of a name increases fear of the thing itself.
Harry Potter and the Deathly Hallows, book.translated_work.translations, Harry Potter och dödsrelikerna
Harry Potter and the Deathly Hallows, common.topic.webpage, m.09ygm9y
Harry Potter and the Half-Blood Prince, book.book.characters, Mrs. Finnigan
Harry Potter Fanbase, freebase.domain_profile.featured_views, Hogwarts Houses
Harry Potter, fictional_universe.fictional_character.children, Lily Luna Potter
Harry Potter and the Order of the Phoenix, book.book.characters, Ginny Weasley
Harry Potter and the Prisoner of Azkaban, book.book.characters, Percy Weasley
Harry Potter, fictional_universe.fictional_organization.appears_in_universes, Gryffindor House
Harry Potter and the Goblet of Fire, book.book.characters, Professor Minerva McGonagall
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b77qmt62
James Potter, fictional_universe.fictional_character.organizations, Gryffindor House
Harry Potter, fictional_universe.fictional_character.organizations, Gryffindor House
Slytherin House, base.harrypotter.hogwarts_house.house_head, Professor Horace Slughorn
Harry Potter, common.topic.notable_for, g.12590p9yf
Harry Potter and the Prisoner of Azkaban, book.book.characters, Ernie Prang
Harry and the Potters, common.topic.image, Harry and the Potters HM
Harry Potter and the Order of the Phoenix, common.topic.webpage, m.09xky1m
Harry Potter and the Half-Blood Prince, media_common.quotation_source.quotations, Age is foolish and forgetful when it underestimates youth.
Harry Potter and the Goblet of Fire, book.book.characters, Mrs. Norris
Harry Potter and the Half-Blood Prince, book.book.characters, g.1235kq4s
Harry Potter, fictional_universe.fictional_universe.organizations, Hufflepuff House
Harry Potter and the Chamber of Secrets, book.book.characters, Penelope Clearwater
Harry Potter and the Half-Blood Prince, book.book.characters, Neville Longbottom
Harry Potter and the Goblet of Fire, book.book.characters, Draco Malfoy
Harry and the Potters, music.artist.track, Fred and George
Harry Potter and the Half-Blood Prince, book.book.characters, George Weasley
Harry Potter and the Prisoner of Azkaban, book.book.characters, Gilderoy Lockhart
Harry Potter and the Half-Blood Prince, book.book.characters, g.122bry5k
Harry Potter and the Philosopher's Stone, base.schemastaging.context_name.pronunciation, g.125_mqhs1
Harry Potter and the Order of the Phoenix, book.book.characters, g.11b6swr8r2
Harry Potter and the Deathly Hallows, common.topic.notable_types, Book
Harry Potter and the Chamber of Secrets, book.book.characters, Percy Weasley
Harry Potter and the Goblet of Fire, book.book.characters, Lily Evans Potter
Harry Potter and the Goblet of Fire, book.book.characters, Percy Weasley
Harry Potter and the Order of the Phoenix, common.topic.webpage, m.09xpz74
Harry Potter and the Goblet of Fire, book.book.characters, Vernon Dursley
Harry Potter and the Half-Blood Prince, book.book.characters, Rubeus Hagrid
Harry Potter and the Half-Blood Prince, book.book.characters, Professor Albus Dumbledore
Harry Potter and the Half-Blood Prince, book.book.characters, Blaise Zabini
Harry Potter and the Goblet of Fire, book.book.characters, Justin Finch-Fletchley
Harry Potter and the Order of the Phoenix, book.book.characters, Rabastan Lestrange
Harry Potter and the Order of the Phoenix, book.book.characters, Crabbe Sr.
Harry Potter and the Order of the Phoenix, book.book.editions, Harry Potter et L'Ordre du Phenix
m.09xx1mt, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Chamber of Secrets, book.book.characters, Hermione Granger
Harry Potter and the Half-Blood Prince, book.book.characters, Pomona Sprout
Harry Potter and the Half-Blood Prince, book.book.characters, Firenze
Professor Filius Flitwick, fictional_universe.fictional_character.organizations, Ravenclaw House
Harry Potter and the Prisoner of Azkaban, book.book.characters, Professor Albus Dumbledore
Harry Potter and the Order of the Phoenix, book.book.characters, Michael Corner
Harry Potter and the Half-Blood Prince, book.book.characters, g.122s8xdc
Harry Potter and the Chamber of Secrets, book.book.characters, Professor Albus Dumbledore
Harry Potter and the Half-Blood Prince, book.book.characters, Regulus Black
Harry Potter and the Half-Blood Prince, book.book.characters, Gwenog Jones
m.052bkn7, common.webpage.topic, Harry and the Potters
Harry Potter and the Half-Blood Prince, book.book.characters, Leanne
Harry Potter and the Half-Blood Prince, book.book.characters, Pansy Parkinson
Harry Potter and the Order of the Phoenix, book.book.characters, Lee Jordan
Harry Potter and the Half-Blood Prince, book.book.characters, Charlie Weasley
Harry Potter and the Half-Blood Prince, book.book.characters, Barnabas Cuffe
Harry Potter and the Goblet of Fire, book.book.characters, Charlie Weasley
Harry Potter and the Half-Blood Prince, book.book.characters, g.1226slpc
Harry Potter and the Prisoner of Azkaban, book.book.characters, Charlie Weasley
Harry Potter and the Chamber of Secrets, book.book.characters, Gilderoy Lockhart
Harry Potter and the Deathly Hallows (Book 7) (Deluxe Edition), book.book_edition.author_editor, J. K. Rowling
Harry Potter and the Goblet of Fire, book.book.characters, Barty Crouch Jr.
Harry Potter and the Order of the Phoenix, book.book.characters, Vincent Crabbe
Harry Potter and the Goblet of Fire, book.book.characters, Ronald Weasley
Harry Potter and the Chamber of Secrets, book.book.characters, Lily Evans Potter
Harry Potter and the Goblet of Fire, book.book.editions, Garri Potter i Kubok Ognia
Harry Potter and the Prisoner of Azkaban, book.book.characters, Lily Evans Potter
Harry Potter and the Order of the Phoenix, book.book.characters, g.11b6v4ybdd
m.09ygm9y, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Order of the Phoenix, book.book.characters, Euan Abercrombie
House-elf, fictional_universe.character_species.found_in_fictional_universe, Harry Potter
Harry Potter and the Goblet of Fire, base.schemastaging.context_name.pronunciation, g.125_p7dg8
Harry Potter and the Prisoner of Azkaban, book.book.characters, Rubeus Hagrid
Harry Potter and the Chamber of Secrets, book.book.characters, George Weasley
Harry Potter and the Order of the Phoenix, book.book.characters, Hermione Granger
Harry Potter and the Prisoner of Azkaban, book.book.characters, Ginny Weasley
Harry Potter and the Chamber of Secrets, book.book.editions, Garri Potter i Tainaia Komnata
Harry Potter and the Half-Blood Prince, common.topic.webpage, m.09x36bv
Albus Severus Potter, fictional_universe.fictional_character.parents, Harry Potter
Harry Potter and the Prisoner of Azkaban, common.topic.notable_for, g.125dz6zlg
Harry Potter and the Order of the Phoenix, book.book.characters, Neville Longbottom
Harry Potter and the Chamber of Secrets, base.schemastaging.context_name.pronunciation, g.125_njz84
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b6swr8r2
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b6rb871k
Harry Potter and the Half-Blood Prince, common.topic.notable_for, g.125cb1839
Harry Potter and the Half-Blood Prince, book.book.characters, g.1ym_l5qwv
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b6nx6fxj
Harry Potter and the Order of the Phoenix, book.book.characters, George Weasley
m.09xyl04, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Chamber of Secrets, book.book.characters, Sir Patrick Delaney-Podmore
Harry Potter and the Order of the Phoenix, book.book.characters, Phineas Nigellus Black
m.0chc4l_, common.webpage.topic, Harry and the Potters
Harry Potter and the Order of the Phoenix, book.book.characters, Pansy Parkinson
Harry Potter and the Deathly Hallows, common.topic.webpage, m.0b47kk2
Harry Potter and the Order of the Phoenix, book.book.characters, Draco Malfoy
Harry Potter and the Deathly Hallows, common.topic.webpage, m.0b48wy4
Harry Potter, fictional_universe.fictional_universe.locations, 4 Privet Drive
Harry Potter and the Order of the Phoenix, book.book.characters, Dudley Dursley
Harry Potter and the Half-Blood Prince, book.book.characters, Poppy Pomfrey
Harry Potter and the Order of the Phoenix, book.book.characters, Eileen Prince
Harry Potter and the Goblet of Fire, book.book.characters, Fleur Delacour
Harry Potter and the Prisoner of Azkaban, book.book.characters, Hermione Granger
Harry Potter and the Half-Blood Prince, book.book.characters, James Potter
Harry Potter and the Half-Blood Prince, book.book.characters, g.11b7kg45gm
Harry Potter and the Philosopher's Stone, book.book.editions, Harry Potter y La Piedra Filosofal - 1
Harry Potter and the Deathly Hallows, common.topic.webpage, m.09yd590
m.0b47kk2, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Half-Blood Prince, book.book.characters, Mrs. Norris
Gryffindor House, base.harrypotter.hogwarts_house.traits, Chivalry
Harry Potter and the Half-Blood Prince, book.book.characters, Phineas Nigellus Black
Harry Potter and the Chamber of Secrets, book.book.characters, Vincent Crabbe
Harry Potter and the Order of the Phoenix, book.book.characters, Rubeus Hagrid
Harry Potter and the Half-Blood Prince, book.book.characters, Olympe Maxime
m.0b4707j, common.webpage.topic, Harry Potter and the Half-Blood Prince
Harry Potter and the Goblet of Fire, book.book.characters, Rodolphus Lestrange
Gryffindor House, fictional_universe.fictional_organization.appears_in_universes, Harry Potter
Harry Potter and the Order of the Phoenix, book.book.characters, Professor Severus Snape
Harry Potter and the Order of the Phoenix, book.book.characters, Dean Thomas
Harry Potter, fictional_universe.fictional_universe.locations, The Riddle House
Harry Potter and the Half-Blood Prince, book.book.characters, Dirk Cresswell
Harry Potter and the Chamber of Secrets, book.book.characters, Lord Voldemort
Harry Potter, fictional_universe.fictional_character.children, Albus Severus Potter
Harry Potter and the Order of the Phoenix, common.topic.notable_types, Book
Harry Potter and the Chamber of Secrets, book.book.characters, Ronald Weasley
Harry Potter and the Order of the Phoenix, book.book.editions, Harry Potter Et L'Ordre Du Phenix
Harry Potter and the Deathly Hallows (Book 7) (Library Edition), book.book_edition.author_editor, J. K. Rowling
Harry Potter and the Half-Blood Prince, book.book.characters, Professor Severus Snape
m.09xtlb5, common.webpage.topic, Harry Potter and the Deathly Hallows
Slytherin House, base.harrypotter.hogwarts_house.house_head, Professor Severus Snape
Harry Potter and the Order of the Phoenix, book.book.characters, Percy Weasley
Harry Potter, fictional_universe.fictional_universe.organizations, Slytherin House
Harry Potter and the Half-Blood Prince, book.book.characters, Amycus Carrow
Harry Potter and the Order of the Phoenix, book.book.characters, Hestia Jones
Gryffindor House, base.harrypotter.hogwarts_house.house_head, Professor Minerva McGonagall
m.0b486hn, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter, fictional_universe.fictional_universe.species, House-elf
Harry Potter and the Half-Blood Prince, book.book.characters, Melinda Bobbin
Harry Potter Fanbase, type.domain.types, Hogwarts House
Harry Potter and the Prisoner of Azkaban, book.book.characters, Fred Weasley
Harry Potter and the Goblet of Fire, book.book.characters, Fred Weasley
Harry Potter and the Order of the Phoenix, common.topic.article, m.014jt3
Harry Potter and the Half-Blood Prince, media_common.quotation_source.quotations, People find it far easier to forgive others for being wrong than being right.
Harry Potter and the Order of the Phoenix, book.book.characters, Lucius Malfoy
m.09xtg5f, common.webpage.topic, Harry Potter and the Deathly Hallows
Harry Potter and the Goblet of Fire, book.book.characters, Mrs. Finnigan
Harry Potter, fictional_universe.fictional_character.appears_in_these_fictional_universes, Professor Filius Flitwick
Harry Potter and the Prisoner of Azkaban, book.book.characters, Justin Finch-Fletchley
Harry Potter and the Order of the Phoenix, book.book.characters, Molly Weasley
Harry Potter and the Half-Blood Prince, book.book.characters, Wendy Slinkhard
Harry Potter and the Goblet of Fire, book.book.characters, Lord Voldemort
Harry Potter and the Order of the Phoenix, book.book.characters, Lily Evans Potter
Harry Potter and the Goblet of Fire, book.book.characters, Professor Albus Dumbledore
Harry Potter and the Prisoner of Azkaban, book.book.characters, Petunia Evans Dursley
Slytherin House, fictional_universe.fictional_organization.appears_in_universes, Harry Potter
Harry Potter and the Prisoner of Azkaban, book.book.characters, Dean Thomas
Harry Potter and the Order of the Phoenix, book.book.characters, Rodolphus Lestrange
Harry Potter and the Order of the Phoenix, book.book.characters, Luna Lovegood
Harry and the Potters, common.topic.webpage, m.0d5h9q2
Harry Potter and the Deathly Hallows, common.topic.article, m.03bkl1
Hogwarts School of Witchcraft and Wizardry, fictional_universe.fictional_organization.sub_organization_in_fiction, Ravenclaw House
Harry Potter and the Chamber of Secrets, common.topic.notable_for, g.125fhsr_j
Harry Potter and the Half-Blood Prince, book.book.characters, Vincent Crabbe
Harry Potter and the Prisoner of Azkaban, book.book.characters, Vincent Crabbe
Harry Potter and the Chamber of Secrets, book.book.characters, Professor Minerva McGonagall
Harry Potter, symbols.name_source.namesakes, Harry Potter and the Sorcerer's Stone
Harry Potter and the Philosopher's Stone, book.book.editions, Harri Potter a Maen yr Athronydd (Welsh Edition)
Harry Potter and the Chamber of Secrets, book.book.characters, Oliver Woods
Harry Potter and the Half-Blood Prince, book.book.characters, Merope Gaunt
Harry Potter and the Half-Blood Prince, book.book.characters, Harry Potter
Gryffindor House, fictional_universe.fictional_organization.members, Harry Potter
Harry Potter Fanbase, freebase.domain_profile.featured_views, Lord Voldemort in the Harry Potter Films
Harry Potter and the Deathly Hallows, common.topic.webpage, m.0b4771n
Harry Potter and the Half-Blood Prince, book.book.characters, Professor Minerva McGonagall
Harry Potter and the Prisoner of Azkaban, book.book.characters, Sybill Trelawney
Harry Potter and the Chamber of Secrets, book.book.characters, Rubeus Hagrid
Harry Potter and the Chamber of Secrets, book.book.characters, Justin Finch-Fletchley
Harry Potter and the Goblet of Fire, book.book.characters, Olympe Maxime
Harry Potter, fictional_universe.fictional_character.appears_in_these_fictional_universes, Cho Chang
Harry Potter and the Goblet of Fire, book.book.characters, Goyle Sr.
Harry Potter and the Chamber of Secrets, book.book.characters, Arthur Weasley
Harry Potter and the Half-Blood Prince, book.book.characters, Eldred Worple
Harry and the Potters, common.topic.webpage, m.03kzbz2
Harry Potter and the Half-Blood Prince, book.book.characters, Lord Voldemort
Harry and the Potters, common.topic.notable_for, g.125b467k6
Harry Potter and the Half-Blood Prince, book.book.characters, g.11h1tc7y9
Harry Potter and the Half-Blood Prince, common.topic.article, m.06_rfm
Harry Potter and the Chamber of Secrets, book.book.characters, Draco Malfoy
Harry Potter and the Half-Blood Prince, book.book.characters, g.120ktb3t
Harry Potter and the Half-Blood Prince, book.book.characters, Dolores Umbridge
Harry Potter and the Goblet of Fire, book.book.characters, George Weasley
Harry Potter and the Deathly Hallows, common.topic.webpage, m.09xyl04

Answer: Hufflepuff House
Slytherin House
Ravenclaw House
Gryffindor House