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: Who have leadership role of Chief Planning Officer car manufacturer? 
Knowledge Triplets: Nissan Motor Co., Ltd., organization.organization.founders, Meitaro Takeuchi
Chief Planning Officer, organization.leadership.role, m.0zry5r1
Businessperson, people.profession.people_with_this_profession, Rokuro Aoyama
Leadership Role, type.type.properties, Governors
Kenjiro Den, people.person.profession, Businessperson
Nissan Motor Co., Ltd., organization.organization.founders, Yoshisuke Aikawa
Yoshisuke Aikawa, people.deceased_person.date_of_death, 1967-02-13
Role, type.property.expected_type, Leadership Role
Nissan Motor Co., Ltd., organization.organization.founders, Meitaro Takeuchi
Yoshisuke Aikawa, people.person.date_of_birth, 1880-11-06
Yoshisuke Aikawa, people.deceased_person.place_of_death, Tokyo
Role, type.property.reverse_property, Leaders
William Gorham, organization.organization_founder.organizations_founded, Nissan Motor Co., Ltd.
Role, type.property.reverse_property, Governors
William Gorham, people.person.place_of_birth, San Francisco
m.0zry5r1, organization.leadership.person, Andy Palmer
Leadership Role, type.type.domain, Organization
Yamaguchi, location.location.people_born_here, Yoshisuke Aikawa
Chief Planning Officer, organization.role.leaders, m.0zry5r1
Businessperson, people.profession.people_with_this_profession, Meitaro Takeuchi
Leadership Role, freebase.type_hints.included_types, Topic
Nissan Group, organization.organization.founders, Yoshisuke Aikawa
Yoshisuke Aikawa, organization.organization_founder.organizations_founded, Isuzu Motors Ltd.
Meitaro Takeuchi, people.person.gender, Male
Meitaro Takeuchi, base.schemastaging.context_name.pronunciation, g.125_ksr3l
Nissan Motor Co., Ltd., organization.organization_founder.organizations_founded, Kenjiro Den
Yoshisuke Aikawa, organization.organization_founder.organizations_founded, Nissan Motor Co., Ltd.
William Gorham, people.deceased_person.date_of_death, 1949-10-24
Nissan Motor Co., Ltd., organization.organization.founders, Rokuro Aoyama
Chief Planning Officer, common.topic.notable_types, Leadership Role
Kenjiro Den, organization.organization_founder.organizations_founded, Nissan Motor Co., Ltd.
Yoshisuke Aikawa, people.person.place_of_birth, Yamaguchi
m.03psfdh, people.place_lived.person, Yoshisuke Aikawa
Nissan Motor Co., Ltd., organization.organization.founders, William Gorham
m.0zry5r1, organization.organization.leadership, Nissan Motor Co., Ltd.
Meitaro Takeuchi, people.person.profession, Businessperson
Nissan Motor Co., Ltd., organization.organization.founders, William Gorham
Leadership Role, type.type.properties, Leaders
Yoshisuke Aikawa, people.person.education, m.04ht57m
Businessperson, people.profession.people_with_this_profession, Kenjiro Den
Yoshisuke Aikawa, people.person.gender, Male
m.040q6zx, business.employment_tenure.person, Yoshisuke Aikawa
San Francisco, location.location.people_born_here, William Gorham
Andy Palmer, business.board_member.leader_of, m.0zry5r1
Yoshisuke Aikawa, people.deceased_person.place_of_burial, Tama Cemetery
Nissan Motor Co., Ltd., organization.organization.founders, Masujiro Hashimoto
Yoshisuke Aikawa, people.person.nationality, Japan
Isuzu Motors Ltd., organization.organization.founders, Yoshisuke Aikawa
Nissan Motor Co., Ltd., organization.organization_founder.organizations_founded, Masujiro Hashimoto
Leadership Role, type.type.expected_by, Role
m.0zry5r1, organization.leadership.role, Chief Planning Officer
William Gorham, people.person.date_of_birth, 1888
Yoshisuke Aikawa, people.person.employment_history, m.040q6zx
Businessperson, people.profession.people_with_this_profession, Masujiro Hashimoto
Masujiro Hashimoto, people.person.gender, Male
Nissan Motor Co., Ltd., organization.organization.founders, Yoshisuke Aikawa
m.0zry5r1, organization.leadership.organization, Nissan Motor Co., Ltd.
Leadership Role, freebase.type_profile.strict_included_types, Topic
Role, rdf-schema#range, Leadership Role
Masujiro Hashimoto, people.person.profession, Businessperson
Yoshisuke Aikawa, organization.organization_founder.organizations_founded, Nissan Group
Meitaro Takeuchi, organization.organization_founder.organizations_founded, Nissan Motor Co., Ltd.
m.0zry5r1, freebase.valuenotation.has_no_value, To
Nissan Motor Co., Ltd., organization.organization_founder.organizations_founded, Rokuro Aoyama
Tama Cemetery, people.place_of_interment.interred_here, Yoshisuke Aikawa
Role, owl#inverseOf, Leaders
Nissan Motor Co., Ltd., organization.organization.leadership, m.0zry5r1
Rokuro Aoyama, organization.organization_founder.organizations_founded, Nissan Motor Co., Ltd.
William Gorham, people.deceased_person.place_of_death, Tokyo
Leadership Role, common.topic.article, m.0d9vlf4
Rokuro Aoyama, people.person.gender, Male
Masujiro Hashimoto, organization.organization_founder.organizations_founded, Nissan Motor Co., Ltd.
Kenjiro Den, people.person.gender, Male
Chief Planning Officer, common.topic.notable_for, g.1ypj17ttx
Role, owl#inverseOf, Governors
Yoshisuke Aikawa, people.person.places_lived, m.03psfdh
Nissan Motor Co., Ltd., organization.organization.founders, Kenjiro Den
m.04ht57m, education.education.student, Yoshisuke Aikawa
Rokuro Aoyama, people.person.profession, Businessperson

Answer: Yoshisuke Aikawa
William Gorham
Masujiro Hashimoto
Kenjiro Den
Rokuro Aoyama
Meitaro Takeuchi