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 video game designer has designed both king's quest ii and king's quest i? 
Knowledge Triplets: Carcassonne, cvg.game_version.developer, Sierra Entertainment
Learning With Leeper, cvg.game_version.developer, Sierra Entertainment
Adventure Game Interpreter, cvg.computer_game_engine.used_for_computer_games, King's Quest II
Cannonball Blitz, cvg.computer_videogame.developer, Sierra Entertainment
The Dagger of Amon Ra, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Mixed-Up Fairy Tales, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Roberta Williams, cvg.cvg_designer.games_designed, Mixed-Up Mother Goose
Sierra Entertainment, cvg.cvg_designer.games_designed, Space Quest II
Space Quest 6: The Spinal Frontier, cvg.game_version.developer, Sierra Entertainment
Leisure Suit Larry 5: Passionate Patti Does a Little Undercover Work, cvg.computer_videogame.developer, Sierra Entertainment
Roberta Williams, cvg.cvg_designer.games_designed, King's Quest VI
Manhunter 2: San Francisco, cvg.computer_videogame.developer, Sierra Entertainment
Phantasmagoria, cvg.computer_videogame.designers, Roberta Williams
The Dagger of Amon Ra, cvg.computer_videogame.developer, Sierra Entertainment
Lighthouse: The Dark Being, cvg.game_version.developer, Sierra Entertainment
Freddy Pharkas: Frontier Pharmacist, cvg.game_version.developer, Sierra Entertainment
Sierra Entertainment, cvg.cvg_designer.games_designed, Space Quest III
Mixed-Up Mother Goose, cvg.computer_videogame.designers, Roberta Williams
Police Quest III: The Kindred, cvg.game_version.developer, Sierra Entertainment
Learning with FuzzyWOMP, cvg.game_version.developer, Sierra Entertainment
Lost Cities, cvg.game_version.developer, Sierra Entertainment
King's Quest II, cvg.computer_videogame.publisher, Sierra Entertainment
Hoyle Casino, cvg.game_version.developer, Sierra Entertainment
Sierra Entertainment, cvg.cvg_publisher.games_published, King's Quest II
King's Quest II, cvg.computer_videogame.uses_game_engine, Adventure Game Interpreter
Police Quest IV: Open Season, cvg.game_version.developer, Sierra Entertainment
Apple Cider Spider, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest V, cvg.computer_videogame.designers, Roberta Williams
King's Quest I: Quest for the Crown, cvg.computer_videogame.developer, Sierra Entertainment
Adventure Game Interpreter, cvg.computer_game_engine.used_for_computer_games, King's Quest I
King's Quest II, cvg.computer_videogame.designers, Roberta Williams
King's Quest II, base.wikipedia_infobox.video_game.platforms, Mac OS
Roberta Williams, cvg.cvg_designer.games_designed, King's Quest I
Leisure Suit Larry III: Passionate Patti in Pursuit of the Pulsating Pectorals, cvg.computer_videogame.developer, Sierra Entertainment
Lords of the Realm III, cvg.computer_videogame.developer, Sierra Entertainment
m.0wfyxn8, dataworld.gardening_hint.last_referenced_by, King's Quest II
The Colonel's Bequest, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest II, cvg.computer_videogame.gameplay_modes, Single-player video game
Sierra Entertainment, cvg.cvg_designer.games_designed, Starsiege
King's Quest VII: The Princeless Bride, cvg.game_version.developer, Sierra Entertainment
B.C.'s Quest For Tires, cvg.game_version.developer, Sierra Entertainment
IBM, computer.programming_language_designer.languages_designed, Rexx
King's Quest IV, cvg.computer_videogame.prequel, King's Quest III
King's Quest I, cvg.computer_videogame.publisher, IBM
Roberta Williams, cvg.cvg_designer.games_designed, Mystery House
SODA Off-Road Racing, cvg.game_version.developer, Sierra Entertainment
Silent Thunder: A-10 Tank Killer II, cvg.game_version.developer, Sierra Entertainment
Quest for Glory V: Dragon Fire, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Hunter Hunted, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
IBM, computer.programming_language_designer.languages_designed, IBM i Control Language
PL/I, computer.programming_language.language_designers, IBM
Shivers, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Space Quest II, cvg.computer_videogame.designers, Sierra Entertainment
King's Quest I, base.wikipedia_infobox.video_game.platforms, Tandy 1000
King's Quest I, base.wikipedia_infobox.video_game.platforms, Atari ST
Space Quest: The Sarien Encounter, cvg.computer_videogame.developer, Sierra Entertainment
Space Quest III, cvg.computer_videogame.designers, Sierra Entertainment
Carcassonne, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest II, cvg.computer_videogame.versions, King's Quest II: Romancing the Throne
Space Quest II, cvg.computer_videogame.developer, Sierra Entertainment
Roberta Williams, cvg.cvg_designer.games_designed, The Colonel's Bequest
King's Quest II, base.wikipedia_infobox.video_game.platforms, Atari ST
Sammy Lightfoot, cvg.game_version.developer, Sierra Entertainment
Hoyle Puzzle Games 2005, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Phantasmagoria, cvg.computer_videogame.developer, Sierra Entertainment
Quest for Glory: So You Want to Be a Hero, cvg.computer_videogame.developer, Sierra Entertainment
Oil's Well, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest I: Quest for the Crown, cvg.computer_videogame.sequel, King's Quest II
IBM i Control Language, computer.programming_language.language_designers, IBM
Police Quest: SWAT 2, cvg.computer_videogame.developer, Sierra Entertainment
Apple Cider Spider, cvg.computer_videogame.developer, Sierra Entertainment
Space Quest 6, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Conquests of the Longbow, cvg.game_version.developer, Sierra Entertainment
The Beast Within: A Gabriel Knight Mystery, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Ulysses and the Golden Fleece, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest: Mask of Eternity, cvg.computer_videogame.developer, Sierra Entertainment
Leisure Suit Larry in the Land of the Lounge Lizards, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest IV, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Lost Mind of Dr. Brain, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest IV, cvg.computer_videogame.developer, Sierra Entertainment
SWAT 3: Close Quarters Battle, cvg.game_version.developer, Sierra Entertainment
Single-player video game, cvg.gameplay_mode.games_with_this_mode, King's Quest II
King's Quest IV: The Perils of Rosella, cvg.game_version.developer, Sierra Entertainment
Mixed-Up Mother Goose, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest I, cvg.computer_videogame.developer, Sierra Entertainment
Cannonball Blitz, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Colonel's Bequest, cvg.game_version.developer, Sierra Entertainment
Leisure Suit Larry Goes Looking for Love, cvg.game_version.developer, Sierra Entertainment
King's Quest IV, cvg.computer_videogame.designers, Roberta Williams
Sierra Entertainment, cvg.cvg_developer.games_developed, King's Quest II
X10, computer.programming_language.language_designers, IBM
Outpost, cvg.computer_videogame.developer, Sierra Entertainment
Hunter Hunted, cvg.game_version.developer, Sierra Entertainment
King's Quest VII, cvg.computer_videogame.developer, Sierra Entertainment
Atari ST, computer.computer.key_designers, Atari
Cranston Manor, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Black Cauldron, cvg.computer_videogame.developer, Sierra Entertainment
Ultima: Escape from Mt. Drash, cvg.game_version.developer, Sierra Entertainment
The Shadow of Yserbius, cvg.computer_videogame.developer, Sierra Entertainment
Hoyle's Official Book of Games: Volume 1, cvg.computer_videogame.developer, Sierra Entertainment
Mystery House, cvg.computer_videogame.designers, Roberta Williams
Leisure Suit Larry 6: Shape Up or Slip Out!, cvg.game_version.developer, Sierra Entertainment
Quest for Glory: So You Want to Be a Hero, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Island of Dr. Brain, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Quest for Glory II: Trial by Fire, cvg.game_version.developer, Sierra Entertainment
Sierra Entertainment, cvg.cvg_developer.games_developed, King's Quest I
Police Quest: SWAT, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Quest for Glory: Shadows of Darkness, cvg.computer_videogame.developer, Sierra Entertainment
Codename: ICEMAN, cvg.game_version.developer, Sierra Entertainment
King's Quest I, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Dark Crystal, cvg.computer_videogame.developer, Sierra Entertainment
Roberta Williams, cvg.cvg_designer.games_designed, Phantasmagoria
Roberta Williams, cvg.cvg_designer.games_designed, King's Quest IV
Quest for Glory II: Trial by Fire, cvg.computer_videogame.developer, Sierra Entertainment
Starsiege, cvg.computer_videogame.designers, Sierra Entertainment
Space Quest III: The Pirates of Pestulon, cvg.game_version.developer, Sierra Entertainment
The Dark Crystal, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Robert Ludlum's The Bourne Conspiracy, cvg.computer_videogame.developer, Sierra Entertainment
MissionForce: Cyberstorm, cvg.game_version.developer, Sierra Entertainment
Space Quest III, cvg.computer_videogame.developer, Sierra Entertainment
Torin's Passage, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest I: Quest for the Crown, base.wikipedia_infobox.video_game.developer, AGD Interactive
Casino Empire, cvg.computer_videogame.developer, Sierra Entertainment
Manhunter: New York, cvg.computer_videogame.developer, Sierra Entertainment
IBM, computer.programming_language_designer.languages_designed, Fortran
Carcassonne, cvg.computer_videogame.developer, Sierra Entertainment
Mixed-Up Mother Goose, cvg.computer_videogame.developer, Sierra Entertainment
Leisure Suit Larry in the Land of the Lounge Lizards, cvg.game_version.developer, Sierra Entertainment
Pepper's Adventures in Time, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Island of Dr. Brain, cvg.computer_videogame.developer, Sierra Entertainment
Sierra Entertainment, cvg.cvg_designer.games_designed, Space Quest IV
Conquests of Camelot: The Search for the Grail, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Police Quest: In Pursuit of the Death Angel, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest II, cvg.computer_videogame.developer, Sierra Entertainment
Gabriel Knight: Sins of the Fathers, cvg.game_version.developer, Sierra Entertainment
Police Quest: Open Season, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Quest for Glory: Shadows of Darkness, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest: Mask of Eternity, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
EcoQuest 2: Lost Secret of the Rainforest, cvg.computer_videogame.developer, Sierra Entertainment
Police Quest II: The Vengeance, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Ruins of Cawdor, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Shivers, cvg.computer_videogame.developer, Sierra Entertainment
Casino Empire, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Space Quest II, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Gin Rummy, cvg.game_version.developer, Sierra Entertainment
Police Quest II: The Vengeance, cvg.game_version.developer, Sierra Entertainment
Sierra Entertainment, cvg.cvg_designer.games_designed, Space Quest: The Sarien Encounter
Quest for Glory I: So You Want To Be A Hero, cvg.game_version.developer, Sierra Entertainment
Codename: ICEMAN, cvg.computer_videogame.developer, Sierra Entertainment
Sierra Entertainment, cvg.cvg_designer.games_designed, Police Quest: Open Season
IBM CityOne, base.wikipedia_infobox.video_game.developer, IBM
The Realm Online, cvg.computer_videogame.developer, Sierra Entertainment
Police Quest: In Pursuit of the Death Angel, cvg.computer_videogame.developer, Sierra Entertainment
SWAT 3: Close Quarters Battle, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest, cvg.game_series.games_in_series, King's Quest I
Donald Duck's Playground, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
m.0zg7lrt, dataworld.gardening_hint.last_referenced_by, King's Quest I
King's Quest II: Romancing the Throne, cvg.game_version.game, King's Quest II
Rama, cvg.computer_videogame.developer, Sierra Entertainment
Leisure Suit Larry 5: Passionate Patti Does a Little Undercover Work, cvg.game_version.developer, Sierra Entertainment
SWAT 3: Close Quarters Battle, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Castle of Dr. Brain, cvg.computer_videogame.developer, Sierra Entertainment
Police Quest III: The Kindred, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest I, base.wikipedia_infobox.video_game.platforms, Amiga
Pepper's Adventures in Time, cvg.game_version.developer, Sierra Entertainment
King's Quest I, cvg.computer_videogame.uses_game_engine, Adventure Game Interpreter
King's Quest III, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Space Quest IV, cvg.computer_videogame.developer, Sierra Entertainment
Mystery House, cvg.computer_videogame.developer, Sierra Entertainment
Leisure Suit Larry Goes Looking for Love (in Several Wrong Places), cvg.computer_videogame.developer, Sierra Entertainment
The Time Warp of Dr. Brain, cvg.game_version.developer, Sierra Entertainment
Sierra Entertainment, cvg.cvg_designer.games_designed, Space Quest V
Oil's Well, cvg.computer_videogame.developer, Sierra Entertainment
Leisure Suit Larry: Love for Sail!, cvg.computer_videogame.developer, Sierra Entertainment
Skeetshoot, cvg.game_version.developer, Sierra Entertainment
King's Quest III, cvg.computer_videogame.developer, Sierra Entertainment
The Hobbit, cvg.computer_videogame.designers, Sierra Entertainment
King's Quest, cvg.game_series.games_in_series, King's Quest II
King's Quest III, cvg.computer_videogame.designers, Roberta Williams
Castle of Dr. Brain, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Shivers, cvg.game_version.developer, Sierra Entertainment
EcoQuest: The Search for Cetus, cvg.computer_videogame.developer, Sierra Entertainment
Roberta Williams, cvg.cvg_designer.games_designed, King's Quest I: Quest for the Crown
Phantasmagoria: A Puzzle of Flesh, cvg.game_version.developer, Sierra Entertainment
Gabriel Knight 3: Blood of the Sacred, Blood of the Damned, cvg.computer_videogame.developer, Sierra Entertainment
Leisure Suit Larry III: Passionate Patti in Pursuit of the Pulsating Pectorals, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Police Quest III: The Kindred, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest II, cvg.computer_videogame.release_date, 1985-05
Castle of Dr. Brain, cvg.game_version.developer, Sierra Entertainment
Police Quest: SWAT 2, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest VI, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Police Quest I: In Pursuit of the Death Angel, cvg.game_version.developer, Sierra Entertainment
Jay Miner, computer.computer_designer.computers_designed, Amiga
Fortran, computer.programming_language.language_designers, IBM
Gex, cvg.computer_videogame.developer, Sierra Entertainment
Winnie the Pooh in the Hundred Acre Wood, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest I, base.wikipedia_infobox.video_game.platforms, Mac OS
Sierra Entertainment, cvg.cvg_designer.games_designed, The Hobbit
Torin's Passage, cvg.game_version.developer, Sierra Entertainment
Power Chess, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Apple II, computer.computer.key_designers, Steve Wozniak
Freddy's Rescue Roundup, base.wikipedia_infobox.video_game.developer, IBM
Hoyle's Official Book of Games: Volume 2, cvg.computer_videogame.developer, Sierra Entertainment
Gabriel Knight 3: Blood of the Sacred, Blood of the Damned, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Quest for Glory IV: Shadows of Darkness, cvg.game_version.developer, Sierra Entertainment
Thexder, cvg.game_version.developer, Sierra Entertainment
The Colonel's Bequest, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Birthright - The Gorgon's Alliance, cvg.game_version.developer, Sierra Entertainment
Softporn Adventure, cvg.game_version.developer, Sierra Entertainment
King's Quest VII, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Dagger of Amon Ra, cvg.game_version.developer, Sierra Entertainment
Space Quest IV, cvg.computer_videogame.designers, Sierra Entertainment
Viper Racing, cvg.game_version.developer, Sierra Entertainment
Cool Pool, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Colonel's Bequest, cvg.computer_videogame.designers, Roberta Williams
Outpost, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Roberta Williams, cvg.cvg_designer.games_designed, The Dark Crystal
The Time Warp of Dr. Brain, cvg.computer_videogame.developer, Sierra Entertainment
Phantasmagoria: A Puzzle of Flesh, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest V, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Mixed-Up Fairy Tales, cvg.computer_videogame.developer, Sierra Entertainment
Leisure Suit Larry 6: Shape Up or Slip Out!, cvg.computer_videogame.developer, Sierra Entertainment
EcoQuest: The Search for Cetus, cvg.game_version.developer, Sierra Entertainment
King's Quest VI, cvg.computer_videogame.designers, Roberta Williams
King's Quest I, cvg.computer_videogame.release_date, 1983-07
Wizard and the Princess, cvg.computer_videogame.designers, Roberta Williams
Hunter Hunted, cvg.computer_videogame.developer, Sierra Entertainment
Jones in the Fast Lane, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest I, base.wikipedia_infobox.video_game.platforms, MS-DOS
Leisure Suit Larry 7: Love for Sail!, cvg.game_version.developer, Sierra Entertainment
Conquests of the Longbow: The Legend of Robin Hood, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Lost Mind of Dr. Brain, cvg.computer_videogame.developer, Sierra Entertainment
Cranston Manor, cvg.game_version.developer, Sierra Entertainment
The Ruins of Cawdor, cvg.computer_videogame.developer, Sierra Entertainment
Amiga, computer.computer.key_designers, Jay Miner
Leisure Suit Larry 6: Shape Up or Slip Out!, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest I, base.wikipedia_infobox.video_game.platforms, Apple II
Gabriel Knight: Sins of the Fathers, cvg.computer_videogame.developer, Sierra Entertainment
Conquests of Camelot: The Search for the Grail, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest II, cvg.computer_videogame.prequel, King's Quest I: Quest for the Crown
Hoyle's Official Book of Games: Volume 3, cvg.computer_videogame.developer, Sierra Entertainment
Lost Cities, cvg.computer_videogame.developer, Sierra Entertainment
Phantasmagoria, cvg.game_version.developer, Sierra Entertainment
Quest for Glory III: Wages of War, cvg.game_version.developer, Sierra Entertainment
Single-player video game, cvg.gameplay_mode.games_with_this_mode, King's Quest I
Police Quest: Open Season, cvg.computer_videogame.designers, Sierra Entertainment
Lost Cities, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
IBM, cvg.cvg_publisher.games_published, King's Quest I
Shivers II: Harvest of Souls, cvg.computer_videogame.developer, Sierra Entertainment
IBM, computer.programming_language_designer.languages_designed, X10
Quest for Glory V: Dragon Fire, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest II, cvg.computer_videogame.game_series, King's Quest
IBM, computer.programming_language_designer.languages_designed, PL/I
King's Quest VI, cvg.computer_videogame.developer, Sierra Entertainment
Slater & Charlie Go Camping, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Lighthouse: The Dark Being, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Quest for Glory II: Trial by Fire, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Time Warp of Dr. Brain, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Space Quest IV, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
The Beast Within: A Gabriel Knight Mystery, cvg.game_version.developer, Sierra Entertainment
Power Chess, cvg.game_version.developer, Sierra Entertainment
Space Quest II: Vohaul's Revenge, cvg.game_version.developer, Sierra Entertainment
ImagiNation Network, cvg.computer_videogame.developer, Sierra Entertainment
Donald Duck's Playground, cvg.computer_videogame.developer, Sierra Entertainment
Alien Legacy, cvg.game_version.developer, Sierra Entertainment
Betrayal in Antara, cvg.game_version.developer, Sierra Entertainment
King's Quest I: Quest for the Crown, cvg.game_version.developer, Sierra Entertainment
Mystery House, cvg.game_version.developer, Sierra Entertainment
Space Quest III, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Roberta Williams, cvg.cvg_designer.games_designed, King's Quest VII
King's Quest I: Quest for the Crown, base.wikipedia_infobox.video_game.developer, Himalaya Studios
Leisure Suit Larry in the Land of the Lounge Lizards, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Story Maker, cvg.game_version.developer, Sierra Entertainment
Sammy Lightfoot, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest I: Quest for the Crown, cvg.computer_videogame.designers, Roberta Williams
Betrayal in Antara, cvg.computer_videogame.developer, Sierra Entertainment
Paint Ball, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Jawbreaker, cvg.computer_videogame.developer, Sierra Entertainment
ImagiNation Network, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Jawbreaker, cvg.game_version.developer, Sierra Entertainment
Codename: ICEMAN, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Casino Empire, cvg.game_version.developer, Sierra Entertainment
Rama, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest II, base.wikipedia_infobox.video_game.platforms, Amiga
Police Quest II: The Vengeance, cvg.computer_videogame.developer, Sierra Entertainment
Conquests of the Longbow: The Legend of Robin Hood, cvg.computer_videogame.developer, Sierra Entertainment
Gabriel Knight: Sins of the Fathers, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Casino Games, cvg.computer_videogame.developer, IBM
Lighthouse: The Dark Being, cvg.computer_videogame.developer, Sierra Entertainment
Quest for Glory III: Wages of War, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest II, base.wikipedia_infobox.video_game.platforms, Apple II
King's Quest I, cvg.computer_videogame.gameplay_modes, Single-player video game
Betrayal in Antara, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Ultima: Escape from Mt. Drash, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Roberta Williams, cvg.cvg_designer.games_designed, King's Quest II
The Island of Dr. Brain, cvg.game_version.developer, Sierra Entertainment
Phantasmagoria: A Puzzle of Flesh, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Conquests of Camelot, cvg.game_version.developer, Sierra Entertainment
King's Quest I, cvg.computer_videogame.designers, Roberta Williams
Space Quest 6, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest V, cvg.computer_videogame.developer, Sierra Entertainment
Stunt Flyer, cvg.game_version.developer, Sierra Entertainment
Roberta Williams, cvg.cvg_designer.games_designed, Wizard and the Princess
Gorillas, base.wikipedia_infobox.video_game.developer, IBM
King's Quest II, cvg.computer_videogame.sequel, King's Quest III
Mission Asteroid, cvg.computer_videogame.developer, Sierra Entertainment
Leisure Suit Larry: Love for Sail!, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Wizard and the Princess, cvg.computer_videogame.developer, Sierra Entertainment
Gabriel Knight 3: Blood of the Sacred, Blood of the Damned, cvg.game_version.developer, Sierra Entertainment
King's Quest VI: Heir Today, Gone Tomorrow, cvg.game_version.developer, Sierra Entertainment
Torin's Passage, cvg.computer_videogame.developer, Sierra Entertainment
Mission Asteroid, cvg.game_version.developer, Sierra Entertainment
Adventure game, cvg.cvg_genre.games, King's Quest II
Rexx, computer.programming_language.language_designers, IBM
Roberta Williams, cvg.cvg_designer.games_designed, King's Quest III
Space Quest V, cvg.computer_videogame.designers, Sierra Entertainment
Steve Wozniak, computer.computer_designer.computers_designed, Apple II
Pepper's Adventures in Time, cvg.computer_videogame.developer, Sierra Entertainment
Miami Vice: The Game, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest III, cvg.computer_videogame.prequel, King's Quest II
Leisure Suit Larry 3: Passionate Patti in Pursuit of the Pulsating Pectorals, cvg.game_version.developer, Sierra Entertainment
Ultima: Escape from Mt. Drash, cvg.computer_videogame.developer, Sierra Entertainment
DuckTales: The Quest for Gold, cvg.computer_videogame.developer, Sierra Entertainment
Quest for Glory III: Wages of War, cvg.computer_videogame.developer, Sierra Entertainment
The Dark Crystal, cvg.computer_videogame.designers, Roberta Williams
Wizard and the Princess, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Space Quest IV: Roger Wilco and the Time Rippers, cvg.game_version.developer, Sierra Entertainment
Police Quest: SWAT, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest V: Absence Makes the Heart Go Yonder!, cvg.game_version.developer, Sierra Entertainment
Freddy's Rescue Roundup, cvg.computer_videogame.developer, IBM
The Lost Mind of Dr. Brain, cvg.game_version.developer, Sierra Entertainment
Jones in the Fast Lane, cvg.game_version.developer, Sierra Entertainment
Shivers II: Harvest of Souls, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest III: To Heir Is Human, cvg.game_version.developer, Sierra Entertainment
King's Quest I, cvg.computer_videogame.game_series, King's Quest
King's Quest II: Romancing the Throne, cvg.game_version.developer, Sierra Entertainment
King's Quest II, cvg.computer_videogame.cvg_genre, Adventure game
Phantasmagoria, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Space Quest: The Sarien Encounter, cvg.computer_videogame.designers, Sierra Entertainment
The Beast Within: A Gabriel Knight Mystery, cvg.computer_videogame.developer, Sierra Entertainment
Zyll, base.wikipedia_infobox.video_game.developer, IBM
Jones in the Fast Lane, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Roberta Williams, cvg.cvg_designer.games_designed, King's Quest V
Leisure Suit Larry 5: Passionate Patti Does a Little Undercover Work, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Mickey's Space Adventure, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
Atari, computer.computer_designer.computers_designed, Atari ST
Ulysses and the Golden Fleece, base.wikipedia_infobox.video_game.developer, Sierra Entertainment
King's Quest VII, cvg.computer_videogame.designers, Roberta Williams
Power Chess, cvg.computer_videogame.developer, Sierra Entertainment
Police Quest: Open Season, cvg.computer_videogame.developer, Sierra Entertainment
Outpost, cvg.game_version.developer, Sierra Entertainment
Front Page Sports: Baseball '94, cvg.computer_videogame.developer, Sierra Entertainment
King's Quest II, imdb.topic.title_id, tt0214855

Answer: Roberta Williams