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 parents name of the famous person who went to BRG Steyr? 
Knowledge Triplets: Educational Institution, type.type.properties, Students/Graduates
Educational Institution, type.type.expected_by, Parent Institution
Hitler family, people.family.members, Alois Hitler
Educational Institution, type.type.properties, Athletics brand
Adolf Hitler, people.person.parents, Klara Hitler
Educational Institution, type.type.expected_by, School
m.01064jg7, education.education.student, Adolf Hitler
Alois Hitler, user.avh.default_domain.ellerdale_topic.ellerdale_id, 0081-8c85
Institution, type.property.reverse_property, Honorary degrees awarded
Institution, owl#inverseOf, Students/Graduates
Alois Hitler, people.person.children, Angela Hitler
Educational Institution, type.type.properties, Sexes admitted
m.04hw7vv, people.place_lived.person, Alois Hitler
m.0j6fwgh, people.marriage.spouse, Alois Hitler
Employer, freebase.type_profile.published, Published
Educational Institution, type.type.properties, Radio station
Alois Hitler, people.person.parents, Johann Georg Hiedler
Employer, freebase.type_profile.strict_included_types, Agent
BRG Steyr, common.topic.notable_for, g.1q56fm_5k
Alois Hitler, people.person.children, Alois Hitler, Jr.
Institution, type.property.reverse_property, Students/Graduates
Paula Hitler, people.person.parents, Alois Hitler
Austrian Empire, location.location.people_born_here, Klara Hitler
Alois Hitler, people.deceased_person.date_of_death, 1903-01-03
Organization, freebase.type_profile.published, Published
Educational Institution, type.type.properties, Number of faculty
Angela Hitler, people.person.parents, Alois Hitler
Employer, freebase.type_hints.included_types, Topic
m.0tlphry, dataworld.gardening_hint.last_referenced_by, Klara Hitler
Phone number, rdf-schema#domain, Educational Institution
Klara Hitler, people.person.nationality, Austria-Hungary
Educational Institution, common.topic.article, m.021y5nd
Klara Hitler, people.deceased_person.cause_of_death, Breast cancer
Alois Hitler, base.schemastaging.context_name.official_name, Alois Hitler, Sr.
Klara Hitler, people.person.nationality, Austrian Empire
Alois Hitler, Jr., people.person.parents, Alois Hitler
Educational Institution, type.type.properties, Number of staff
Gustav Hitler, people.person.parents, Klara Hitler
m.01064jg7, education.education.institution, BRG Steyr
m.0jsbnyj, people.marriage.spouse, Alois Hitler
Educational Institution, freebase.type_profile.strict_included_types, Inanimate
Educational Institution, type.type.properties, Newspaper
Institution, type.property.expected_type, Educational Institution
Klara Hitler, user.avh.default_domain.ellerdale_topic.ellerdale_id, 0082-5cfb
Alois Hitler, people.person.profession, Customs officer
Johann Georg Hiedler, people.person.children, Alois Hitler
Organization, freebase.type_hints.included_types, Topic
Educational Institution, type.type.properties, Subsidiary Or Constituent Schools
Educational Institution, type.type.expected_by, Member organisations
Otto Hitler, people.person.parents, Klara Hitler
Mascot, owl#inverseOf, School
Mascot, type.property.schema, Educational Institution
Customs officer, people.profession.people_with_this_profession, Alois Hitler
Educational Institution, type.type.expected_by, Subsidiary Or Constituent Schools
Otto Hitler, people.person.parents, Alois Hitler
Klara Hitler, people.person.parents, Johanna Hiedler
BRG Steyr, common.topic.notable_types, Educational Institution
Educational Institution, type.type.expected_by, Teaches at
Alois Hitler, people.person.nationality, Austria-Hungary
Klara Hitler, people.person.parents, Johann Baptist Pölzl
Klara Hitler, base.schemastaging.context_name.official_name, Klara Hitler
Hitler family, people.family.members, Klara Hitler
Alois Hitler, people.person.nationality, Austrian Empire
Educational Institution, freebase.type_profile.strict_included_types, Abstract
School, type.property.expected_type, Educational Institution
Klara Hitler, people.family_member.family, Hitler family
Educational Institution, type.type.expected_by, Sponsor
Breast cancer, people.cause_of_death.people, Klara Hitler
Klara Hitler, people.person.date_of_birth, 1860-08-12
Edmund Hitler, people.person.parents, Alois Hitler
Klara Hitler, people.person.children, Otto Hitler
School, type.property.master_property, Mascot
Institution, owl#inverseOf, Honorary degrees awarded
Educational Institution, type.type.properties, School type
Phone number, type.property.schema, Educational Institution
Educational Institution, type.type.expected_by, Institution
Klara Hitler, people.person.children, Adolf Hitler
Educational Institution, type.type.properties, Honorary degrees awarded
m.0j4k37g, people.marriage.spouse, Alois Hitler
Alois Hitler, people.person.place_of_birth, Waldviertel
School, type.property.master_property, Sports teams
m.0j4k37g, people.marriage.spouse, Klara Hitler
Alois Hitler, people.family_member.family, Hitler family
Educational Institution, freebase.type_profile.strict_included_types, Agent
Educational Institution, type.type.properties, Total Enrollment
Alois Hitler, people.person.children, Adolf Hitler
Alois Hitler, people.person.children, Ida Hitler
Klara Hitler, people.person.profession, Domestic worker
Mascot, rdf-schema#domain, Educational Institution
Alois Hitler, people.person.date_of_birth, 1837-06-07
Adolf Hitler, people.person.parents, Alois Hitler
Klara Hitler, people.person.children, Paula Hitler
Organization, freebase.type_profile.strict_included_types, Inanimate
Educational Institution, freebase.type_hints.included_types, Employer
Klara Hitler, people.person.children, Gustav Hitler
Alois Hitler, people.person.children, Paula Hitler
Educational Institution, freebase.type_profile.published, Published
Educational Institution, type.type.expected_by, Schools of this kind
Educational Institution, type.type.properties, Mascot
Educational Institution, type.type.expected_by, Holding Institution
BRG Steyr, education.educational_institution.students_graduates, m.01064jg7
Educational Institution, freebase.type_hints.included_types, Organization
School type, owl#inverseOf, Schools of this kind
Education, type.domain.types, Educational Institution
Ida Hitler, people.person.parents, Alois Hitler
Educational Institution, freebase.type_hints.included_types, Topic
Organization, freebase.type_profile.strict_included_types, Abstract
Paula Hitler, people.person.parents, Klara Hitler
Johann Baptist Pölzl, people.person.children, Klara Hitler
School type, type.property.reverse_property, Schools of this kind
Institution, rdf-schema#range, Educational Institution
Topic, freebase.type_profile.published, Published
Klara Hitler, people.person.place_of_birth, Austrian Empire
Educational Institution, type.type.properties, Nickname
Gustav Hitler, people.person.parents, Alois Hitler
Klara Hitler, people.deceased_person.date_of_death, 1907-12-21
Klara Hitler, people.person.religion, Catholicism
Alois Hitler, people.person.children, Gustav Hitler
Alois Hitler, people.person.children, Otto Hitler
Klara Hitler, people.person.spouse_s, m.0j4k37g
Klara Hitler, people.person.children, Ida Hitler
Alois Hitler, people.person.gender, Male
Educational Institution, freebase.type_profile.kind, Description
Alois Hitler, people.person.spouse_s, m.0jsbnyj
Educational Institution, type.type.properties, Colors
Alois Hitler, people.deceased_person.place_of_death, Linz
Waldviertel, location.location.people_born_here, Alois Hitler
Educational Institution, freebase.documented_object.documentation, m.021y5nd
Alois Hitler, people.person.spouse_s, m.0j6fwgh
Educational Institution, freebase.type_profile.strict_included_types, Topic
Alois Hitler, people.person.places_lived, m.04hw7vv
Educational Institution, type.type.expected_by, Associated educational institution
School, rdf-schema#range, Educational Institution
Domestic worker, people.profession.people_with_this_profession, Klara Hitler
Klara Hitler, people.person.children, Edmund Hitler
Educational Institution, type.type.properties, Parent Institution
Alois Hitler, people.person.religion, History of the term "Catholic"
School type, type.property.schema, Educational Institution
Educational Institution, type.type.properties, Motto
Maria Schicklgruber, people.person.children, Alois Hitler
Alois Hitler, people.person.religion, Catholicism
Adolf Hitler, people.person.education, m.01064jg7
BRG Steyr, education.education.institution, m.01064jg7
Alois Hitler, people.person.spouse_s, m.0j4k37g
Educational Institution, type.type.expected_by, Associated Institutions
Alois Hitler, people.person.children, Edmund Hitler
Organization, freebase.type_profile.strict_included_types, Agent
Organization, freebase.type_profile.strict_included_types, Topic
School/Institution, rdf-schema#range, Educational Institution
m.01064jg7, people.person.education, Adolf Hitler
Educational Institution, type.type.domain, Education
Klara Hitler, people.person.gender, Female
Educational Institution, type.type.properties, Phone number
Colors, type.property.schema, Educational Institution
Johanna Hiedler, people.person.children, Klara Hitler
Klara Hitler, people.deceased_person.place_of_death, Linz
Employer, freebase.type_profile.strict_included_types, Topic
Educational Institution, freebase.type_profile.strict_included_types, Employer
Mascot, type.property.reverse_property, School
School/Institution, type.property.expected_type, Educational Institution
Educational Institution, type.type.expected_by, Accademia Anja
Colors, rdf-schema#domain, Educational Institution
Educational Institution, type.type.expected_by, School/Institution
Educational Institution, type.type.properties, Sports teams
Alois Hitler, user.narphorium.people.nndb_person.nndb_id, 072$002F000052913
Educational Institution, type.type.expected_by, Educational institution
Educational Institution, freebase.type_profile.strict_included_types, Organization
Educational Institution, type.type.properties, Campuses
m.010fgkbv, dataworld.gardening_hint.last_referenced_by, Alois Hitler
Adolf Hitler, people.person.parents, Klara Hitler
Edmund Hitler, people.person.parents, Klara Hitler
Adolf Hitler, people.person.parents, Alois Hitler
School type, rdf-schema#domain, Educational Institution
Alois Hitler, people.person.parents, Maria Schicklgruber
Ida Hitler, people.person.parents, Klara Hitler
Educational Institution, type.type.properties, School magazines

Answer: Alois Hitler
Klara Hitler