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: which gameplay mode is the video game that supports the peripheral joy stick? 
Knowledge Triplets: Microsoft Flight, base.wikipedia_infobox.video_game.platforms, Microsoft Windows
davewiner, base.yupgrade.user.topics, Joystick
Joystick, computer.computer_peripheral_class.supporting_games, Tetris 2
Krakout, cvg.game_version.peripherals_supported, Joystick
m.07c_tgj, base.yupgrade.user.topics, Joystick
Computer keyboard, computer.computer_peripheral.supporting_games, Tetris 2
Tetris, cvg.computer_videogame.influenced, Tetris 2
Single-player video game, cvg.gameplay_mode.games_with_this_mode, Microsoft Flight
Joydick, computer.computer_peripheral.peripheral_class, Joystick
Tetris 2, cvg.computer_videogame.peripherals_supported, Joystick
Microsoft Flight, cvg.computer_videogame.influenced_by, Microsoft Flight Simulator X
Joystick, computer.computer_peripheral_class.supporting_games, Pyjamarama
Pyjamarama, cvg.computer_videogame.game_series, Wally Week
Computer keyboard, computer.computer_peripheral_class.supporting_games, Tetris 2
X-Plane, cvg.computer_videogame.peripheral_classes_supported, Joystick
X-Plane, cvg.computer_videogame.developer, Laminar Research
Joystick, cvg.computer_videogame.peripherals_supported, Microsoft Flight
m.07nf7n0, base.ontologies.ontology_instance_mapping.freebase_topic, Joystick
Pyjamarama, cvg.computer_videogame.developer, Chris Hinsley
Microsoft Flight, base.wikipedia_infobox.video_game.developer, Microsoft Studios
Joystick, user.avh.default_domain.ellerdale_topic.ellerdale_id, 009a-1d43
X-Plane, cvg.computer_videogame.prequel, Archer-II IFR
Joystick, computer.computer_peripheral_class.products, Joydick
Microsoft Flight Simulator X, cvg.computer_videogame.influenced, Microsoft Flight
Joystick, computer.computer_peripheral.supporting_games, Microsoft Flight
Pyjamarama, base.wikipedia_infobox.video_game.platforms, Amstrad CPC
X-Plane, cvg.computer_videogame.versions, X-Plane
Pyjamarama, cvg.computer_videogame.developer, Mikro-Gen
Tetris 2, cvg.computer_videogame.gameplay_modes, Single-player video game
Joystick, computer.computer_peripheral.supporting_game_versions, Krakout
Pyjamarama, cvg.computer_videogame.versions, Pyjamarama
Pyjamarama, cvg.computer_videogame.gameplay_modes, Single-player video game
Tetris 2, cvg.computer_videogame.influenced_by, Tetris
Multiplayer video game, cvg.gameplay_mode.games_with_this_mode, Microsoft Flight
Single-player video game, cvg.gameplay_mode.games_with_this_mode, Pyjamarama
Microsoft Flight, cvg.computer_videogame.peripherals_supported, Joystick
X-Plane, cvg.computer_videogame.designers, Austin Meyer
Tetris 2, cvg.computer_videogame.gameplay_modes, Multiplayer video game
Joystick, base.ontologies.ontology_instance.equivalent_instances, m.07nf7n0
Tetris 2, cvg.computer_videogame.peripherals_supported, Computer keyboard
Tetris 2, cvg.computer_videogame.processors_supported, Zilog Z80
Pyjamarama, cvg.computer_videogame.designers, Chris Hinsley
Pyjamarama, base.wikipedia_infobox.video_game.platforms, ZX Spectrum
Joystick, computer.computer_peripheral.supporting_games, Tetris 2
Pyjamarama, base.wikipedia_infobox.video_game.developer, Chris Hinsley
Throttle controller, computer.computer_peripheral_class.supporting_games, X-Plane
Tetris 2, base.wikipedia_infobox.video_game.platforms, ZX Spectrum
Multiplayer video game, cvg.gameplay_mode.games_with_this_mode, Tetris 2
m.0qyd1r4, dataworld.gardening_hint.last_referenced_by, Joystick
Tetris 2, cvg.computer_videogame.peripheral_classes_supported, Computer keyboard
Krakout, cvg.computer_videogame.versions, Krakout
Joystick, computer.computer_peripheral_class.supporting_games, X-Plane
Microsoft Flight, cvg.computer_videogame.peripherals_supported, Xbox 360 Controller
Pyjamarama, base.wikipedia_infobox.video_game.platforms, Commodore 64
Microsoft Flight, cvg.computer_videogame.developer, Microsoft Studios
Microsoft Flight, cvg.computer_videogame.gameplay_modes, Multiplayer video game
Pyjamarama, cvg.computer_videogame.peripheral_classes_supported, Joystick
Tetris 2, cvg.computer_videogame.versions, Tetris 2
Microsoft Flight, cvg.computer_videogame.gameplay_modes, Single-player video game
Xbox 360 Controller, computer.computer_peripheral.supporting_games, Microsoft Flight
Single-player video game, cvg.gameplay_mode.games_with_this_mode, Tetris 2
Tetris 2, cvg.computer_videogame.peripheral_classes_supported, Joystick
joystick.noun.02, base.wordnet.synset.equivalent_topic, Joystick
Wired, base.yupgrade.user.topics, Joystick
X-Plane, cvg.computer_videogame.peripheral_classes_supported, Throttle controller

Answer: Multiplayer video game
Single-player video game