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: c&o railroad owns a what locomotive? 
Knowledge Triplets: Collis Potter Huntington, people.person.spouse_s, m.03w8pt1
Collis Potter Huntington, people.person.nationality, United States of America
m.0x0xhcd, rail.locomotive_ownership.from_date, 1932-04-30
Writer, people.profession.people_with_this_profession, Collis Potter Huntington
Collis Potter Huntington, symbols.name_source.namesakes, Collis P. Huntington State Park
Huntington, symbols.namesake.named_after, Collis Potter Huntington
Harwinton, location.location.people_born_here, Collis Potter Huntington
Collis Potter Huntington, symbols.name_source.namesakes, Huntington
Collis Potter Huntington, people.person.gender, Male
m.052b88t, business.employment_tenure.company, Chesapeake and Ohio Railway
Collis Potter Huntington, people.deceased_person.place_of_burial, Woodlawn Cemetery
Huntington Park, symbols.namesake.named_after, Collis Potter Huntington
m.03w8pt1, people.marriage.spouse, Collis Potter Huntington
Collis Potter Huntington, organization.organization_founder.organizations_founded, Southern Pacific Transportation Company
Huntington Ingalls Industries, symbols.namesake.named_after, Collis Potter Huntington
Collis Potter Huntington, people.person.profession, Writer
Collis Potter Huntington, book.author.works_written, Collis P. Huntington papers, 1856-1901
The Colton letters, book.written_work.author, Collis Potter Huntington
Northrop Grumman Shipbuilding, organization.organization.founders, Collis Potter Huntington
Nothing Like It in the World: The Men Who Built the Transcontinental Railroad 1863-1869, book.written_work.subjects, Collis Potter Huntington
Chesapeake and Ohio Railway, organization.organization.date_founded, 1869
Collis Potter Huntington, symbols.name_source.namesakes, Huntington Hotel
Woodlawn Cemetery, people.place_of_interment.interred_here, Collis Potter Huntington
m.052b893, business.employment_tenure.person, Collis Potter Huntington
Collis Potter Huntington, user.patrick.default_domain.tagged_topic.tags, Big Four
m.052b88t, business.employment_tenure.person, Collis Potter Huntington
Collis P. Huntington State Park, symbols.namesake.named_after, Collis Potter Huntington
Collis Potter Huntington, people.person.profession, Businessperson
Collis Potter Huntington, people.person.employment_history, m.052b88z
Collis Potter Huntington, people.deceased_person.place_of_death, Camp Pine Knot
George Washington, rail.locomotive.owners, m.0x0xhcd
Collis Potter Huntington, organization.organization_founder.organizations_founded, Central Pacific Railroad
Collis Potter Huntington, people.person.employment_history, m.052b893
Businessperson, people.profession.people_with_this_profession, Collis Potter Huntington
Collis Potter Huntington, symbols.name_source.namesakes, Huntington Ingalls Industries
Chesapeake and Ohio Railway, business.employer.employees, m.052b88t
m.0x0xhcd, rail.locomotive_ownership.locomotive, George Washington
Big Four, user.patrick.default_domain.tag.tagged_topics, Collis Potter Huntington
Collis Potter Huntington, symbols.name_source.namesakes, Huntington Park
Collis Potter Huntington, organization.organization_founder.organizations_founded, Northrop Grumman Shipbuilding
Central Pacific Railroad, organization.organization.founders, Collis Potter Huntington
m.0x0xhcd, rail.locomotive_ownership.owner, Chesapeake and Ohio Railway
Collis Potter Huntington, book.book_subject.works, Nothing Like It in the World: The Men Who Built the Transcontinental Railroad 1863-1869
Collis Potter Huntington, people.person.date_of_birth, 1821-10-22
m.052b88z, business.employment_tenure.person, Collis Potter Huntington
Huntington Hotel, symbols.namesake.named_after, Collis Potter Huntington
Collis Potter Huntington, people.person.place_of_birth, Harwinton
Chesapeake and Ohio Railway, organization.organization.founders, Collis Potter Huntington
Merchant, people.profession.people_with_this_profession, Collis Potter Huntington
Collis Potter Huntington, people.deceased_person.date_of_death, 1900-08-13
Collis Potter Huntington, people.person.employment_history, m.052b88t
Collis P. Huntington papers, 1856-1901, book.written_work.author, Collis Potter Huntington
Collis Potter Huntington, book.author.works_written, The Colton letters
Southern Pacific Transportation Company, organization.organization.founders, Collis Potter Huntington
Collis Potter Huntington, people.person.profession, Merchant
Collis Potter Huntington, organization.organization_founder.organizations_founded, Chesapeake and Ohio Railway
Chesapeake and Ohio Railway, rail.locomotive_owner.locomotives_owned, m.0x0xhcd

Answer: George Washington