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 is the video game rating whose rating system includes the content descriptor of use of drugs? 
Knowledge Triplets: Strong Lyrics, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.ratings, Everyone 10+
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Sexual Violence
Entertainment Software Rating Board, cvg.computer_game_rating_system.ratings, Kids to Adults
Entertainment Software Rating Board, organization.organization.parent, m.0cv5589
Teen, cvg.computer_game_rating.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Lyrics
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Crude Humor
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Use of Alcohol
Content rating, organization.organization_sector.organizations_in_this_sector, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Alcohol Reference
m.0cv45v6, organization.organization_relationship.child, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Intense Violence
Violence, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.ratings, Teen
Use of Alcohol, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Cartoon Violence
Sexual Themes, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Real Gambling
Entertainment Software Rating Board, cvg.computer_game_rating.rating_system, Kids to Adults
Drug Reference, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Strong Sexual Content, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Video game industry, organization.organization_sector.organizations_in_this_sector, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Tobacco Reference
Blood, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Use of Tobacco
m.0cv3qj0, organization.organization_relationship.child, Entertainment Software Rating Board
Mature, cvg.computer_game_rating.rating_system, Entertainment Software Rating Board
m.0cv4clr, organization.organization_relationship.child, Entertainment Software Rating Board
Entertainment Software Rating Board, organization.organization.headquarters, m.0wk_8xw
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Comic Mischief
Mature Humor, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, organization.organization.parent, m.0cv3qj0
Language, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
m.0cv52vb, organization.organization_relationship.child, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Language
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Simulated Gambling
Comic Mischief, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Everyone, cvg.computer_game_rating.rating_system, Entertainment Software Rating Board
Violent References, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Mature Humor
Entertainment Software Rating Board, cvg.computer_game_rating.rating_system, Everyone
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Strong Lyrics
Fantasy Violence, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Partial Nudity, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, organization.organization.parent, m.0cv45v6
Sexual Violence, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, base.schemastaging.context_name.pronunciation, g.125_q0t7g
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Blood
Entertainment Software Rating Board, organization.organization.place_founded, Canada
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Strong Language
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Sexual Themes
Entertainment Software Rating Board, organization.organization.parent, m.0cv52vb
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Violent References
Video game, organization.organization_sector.organizations_in_this_sector, Entertainment Software Rating Board
Tobacco Reference, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, organization.organization.parent, m.0cv4clr
Alcohol Reference, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Suggestive Themes, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Adults Only, cvg.computer_game_rating.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.ratings, Adults Only
Animated Blood, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Strong Sexual Content
Entertainment Software Rating Board, user.avh.default_domain.ellerdale_topic.ellerdale_id, 0081-76d1
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Suggestive Themes
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Blood and Gore
Entertainment Software Rating Board, cvg.computer_game_rating_system.ratings, Rating Pending
Entertainment Software Rating Board, organization.organization.sectors, Video game industry
Entertainment Software Rating Board, cvg.computer_game_rating_system.ratings, Everyone
Entertainment Software Rating Board, cvg.computer_game_rating.rating_system, Mature
Lyrics, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Use of Tobacco, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Partial Nudity
Rating Pending, cvg.computer_game_rating.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Use of Drugs
Cartoon Violence, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Drug Reference
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Nudity
Nudity, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Crude Humor, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Everyone 10+, cvg.computer_game_rating.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating.rating_system, Early Childhood
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Animated Blood
Entertainment Software Rating Board, cvg.computer_game_rating_system.ratings, Mature
Real Gambling, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Strong Language, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating.rating_system, Teen
Blood and Gore, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Sexual Content
Simulated Gambling, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Intense Violence, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, cvg.computer_game_rating_system.ratings, Early Childhood
Entertainment Software Rating Board, organization.organization.date_founded, 1994
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Fantasy Violence
Entertainment Software Rating Board, cvg.computer_game_rating_system.content_descriptors, Violence
Early Childhood, cvg.computer_game_rating.rating_system, Entertainment Software Rating Board
Kids to Adults, cvg.computer_game_rating.rating_system, Entertainment Software Rating Board
Entertainment Software Rating Board, organization.organization.sectors, Video game
m.0cv5589, organization.organization_relationship.child, Entertainment Software Rating Board
Entertainment Software Rating Board, organization.organization.sectors, Content rating
Use of Drugs, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board
Sexual Content, cvg.computer_game_content_descriptor.rating_system, Entertainment Software Rating Board

Answer: Everyone
Mature
Everyone 10+
Rating Pending
Adults Only
Teen
Kids to Adults
Early Childhood