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 invention did the person that said "Time stays long enough for those who use it." invent? 
Knowledge Triplets: Military Engineer, people.profession.specialization_of, Engineer
Leonardo da Vinci, book.book_subject.works, Leonardo Da Vinci
But the idea proved impracticable., base.kwebbase.kwsentence.next_sentence, During his stay in Florence, Da Vinci painted the \"Mona Lisa\".
leonardo da vinci influenced albrecht durer, base.kwebbase.kwconnection.sentence, His work influenced that of Alberti, Durer, Signorelli, Rubens  and Tartaglia.
Leonardo da Vinci, book.author.works_written, Codex Urbinas
Leonardo da Vinci, people.person.quotations, As a well-spent day brings happy sleep, so a life well spent brings happy death.
Leonardo da Vinci, freebase.valuenotation.has_no_value, Children
Bob Kane, people.person.profession, Writer
Codex Urbinas, book.written_work.author, Leonardo da Vinci
Author, type.property.schema, Quotation
Diving suit, law.invention.inventor, Leonardo da Vinci
Leonardo da Vinci, people.person.employment_history, m.0c87rwf
m.05kff44, people.place_lived.person, Leonardo da Vinci
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, (Four centuries later, his ideas on flight stimulated Russian aviation expert Sikorsky to develop the helicopter.)
Medusa, visual_art.artwork.artist, Leonardo da Vinci
igor ivanovich sikorsky inspired by leonardo da vinci, base.kwebbase.kwconnection.other, Leonardo da Vinci
Common Sense is that which judges the things given to it by other senses., media_common.quotation.author, Leonardo da Vinci
Leonardo da Vinci, book.author.works_written, Codex Madrid
m.04d01wr, business.employment_tenure.person, Leonardo da Vinci
Leonardo da Vinci, book.author.works_written, Codex Forster
Parachute, law.invention.inventor, Leonardo da Vinci
Leonardo da Vinci, people.person.quotations, Experience does not err. Only your judgments err by expecting from her what is not in her power.
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, They have influenced thinkers, scientists and artists through the centuries.
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, Da Vinci resented that other artists, such as Raphael and Michelangelo, were fully employed.
Quotation, type.type.expected_by, Zitat
Our life is made by the death of others., media_common.quotation.author, Leonardo da Vinci
Niccolò Machiavelli, freebase.valuenotation.has_value, Education
Leonardo da Vinci, influence.influence_node.influenced, Bob Kane
Leonardo da Vinci and the Art of Sculpture: Inspiration and Invention, exhibitions.exhibition.subjects, Leonardo da Vinci
Dan Brown, freebase.valuenotation.is_reviewed, Gender
Leonardo da Vinci, people.person.employment_history, m.04d01tw
(Four centuries later, his ideas on flight stimulated Russian aviation expert Sikorsky to develop the helicopter.), base.kwebbase.kwsentence.contains_connections, leonardo da vinci inspired igor ivanovich sikorsky
Leonardo da Vinci, people.person.profession, Botanist
Author, rdf-schema#domain, Quotation
Leonardo da Vinci, people.person.profession, Architect
Dan Brown, freebase.valuenotation.is_reviewed, Date of birth
Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work., base.kwebbase.kwsentence.contains_connections, leonardo da vinci influenced thomas hobbes
Men of lofty genius when they are doing the least work are most active., media_common.quotation.author, Leonardo da Vinci
Bob Kane, freebase.valuenotation.is_reviewed, Date of birth
During his stay in Florence, Da Vinci painted the \"Mona Lisa\"., base.kwebbase.kwsentence.previous_sentence, But the idea proved impracticable.
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, Exceptionally inventive and versatile, Da Vinci designed mobile bridges, mortars, other items of artillery, naval weapons, and armored fighting vehicles.
Leonardo da Vinci, influence.influence_node.influenced, Walter Lowenfels
Leonardo da Vinci, law.inventor.inventions, Triple Barrel Canon
33-Barreled Organ, law.invention.inventor, Leonardo da Vinci
m.09x1mhs, common.webpage.topic, Leonardo da Vinci
Leonardo da Vinci, common.topic.image, Leonardo self
Leonardo da Vinci, base.kwebbase.kwtopic.connections_to, camera obscura invention credited to leonardo da vinci
Bob Kane, freebase.valuenotation.is_reviewed, Date of death
Quotation, type.type.expected_by, Quotations
Leonardo da Vinci, freebase.valuenotation.has_value, Education
Leonardo da Vinci, book.author.works_written, Codex Atlanticus
Da Vinci - The Genius, exhibitions.exhibition.subjects, Leonardo da Vinci
Leonardo da Vinci, book.author.works_written, Codex Windsor
Leonardo da Vinci, common.topic.article, m.04yr0l9
In 1502, Da Vinci entered the employ of Borgia, the illegitimate son of  Pope Alexander VI., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Piero Fruosino di Antonio da Vinci, people.person.gender, Male
Media, type.domain.types, Quotation
Just as courage imperils life; fear protects it., media_common.quotation.author, Leonardo da Vinci
Leonardo da Vinci, people.person.profession, Scientist
Inventor, people.profession.specialization_of, Scientist
Leonardo da Vinci, book.author.works_written, Il paragone delle arti
(Four centuries later, his ideas on flight stimulated Russian aviation expert Sikorsky to develop the helicopter.), base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Walter Lowenfels, people.person.profession, Writer
Leonardo da Vinci, law.inventor.inventions, Anemometer
Lorenzo di Credi, people.person.gender, Male
Niccolò Machiavelli, freebase.valuenotation.is_reviewed, Place of birth
Leonardo da Vinci, people.person.ethnicity, Italian people
Leonardo da Vinci, base.kwebbase.kwtopic.connections_to, peter paul rubens studied work of leonardo da vinci
Leonardo da Vinci, base.kwebbase.kwtopic.connections_to, cesare borgia employed leonardo da vinci
Leonardo da Vinci, people.person.quotations, A good painter is to paint two main things, men and the working of man's mind.
Leonardo da Vinci, people.person.parents, Caterina da Vinci
Pontormo, people.person.profession, Painter
Recognized as a genius, with immense energy and limitless curiosity which both fed and dissipated his extraordinary gifts., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
giovanni battista venturi wrote on leonardo da vinci, base.kwebbase.kwconnection.other, Leonardo da Vinci
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, He designed sets and props that were used in pageants for the duke's court.
Da Vinci was apprenticed to Verrocchio in Florence under whom he worked until 1477, when he was 25., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Leonardo da Vinci, people.person.sibling_s, m.0t_6q4r
Leonardo da Vinci, people.person.sibling_s, m.0t_6qmt
Codex Leicester, book.written_work.author, Leonardo da Vinci
Dan Brown, people.person.gender, Male
Time stays long enough for those who use it., media_common.quotation.subjects, Time and Time Management
Leonardo da Vinci, people.person.profession, Geologist
leonardo da vinci inspired igor ivanovich sikorsky, base.kwebbase.kwconnection.subject, Leonardo da Vinci
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, Da Vinci was apprenticed to Verrocchio in Florence under whom he worked until 1477, when he was 25.
Recognized as a genius, with immense energy and limitless curiosity which both fed and dissipated his extraordinary gifts., base.kwebbase.kwsentence.next_sentence, His scientific imagination, his drawings and notebooks have inspired both artists and scientists through the centuries.
Leonardo da Vinci, book.author.works_written, Degnen, Lisa
leonardo da vinci influenced andreas vesalius, base.kwebbase.kwconnection.sentence, Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work.
Leonardo da Vinci, freebase.valuenotation.is_reviewed, Children
Leonardo da Vinci, people.person.profession, Painter
Raphael, people.person.profession, Architect
Piero Fruosino di Antonio da Vinci, people.person.children, Leonardo da Vinci
Leonardo da Vinci, common.topic.article, m.04lgj
Leonardo da Vinci, book.author.works_written, Codex Trivulzianus
Leonardo da Vinci, people.person.profession, Inventor
In 1506, Da Vinci was called to Milan by the French governor., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Quotation, type.type.properties, Subjects
Leonardo da Vinci, people.person.profession, Mathematician
Leonardo da Vinci, exhibitions.exhibition_subject.exhibitions_created_about_this_subject, The Art of Invention
Leonardo da Vinci, people.person.profession, Anatomist
m.04ytzw9, people.place_lived.location, Vinci
Quotation, common.topic.article, m.02hylcq
Leonardo da Vinci, people.person.places_lived, m.04ytzw9
Leonardo da Vinci, law.inventor.inventions, Ornithopter
Quotation, freebase.type_profile.kind, Definition
Author, owl#inverseOf, Quotations
Leonardo da Vinci, people.person.profession, Engineer
Leonardo da Vinci, law.inventor.inventions, 33-Barreled Organ
Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work., base.kwebbase.kwsentence.contains_connections, leonardo da vinci influenced andreas vesalius
Giorgio Vasari, people.person.gender, Male
cesare borgia employed leonardo da vinci, base.kwebbase.kwconnection.other, Leonardo da Vinci
Leonardo da Vinci, law.inventor.inventions, Double hull
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, Da Vinci spent every spare moment in the pursuit of science.
He designed sets and props that were used in pageants for the duke's court., base.kwebbase.kwsentence.previous_sentence, He worked on fortifications, canals and other architectural projects.
Leonardo da Vinci, people.person.sibling_s, m.0t_6q76
peter paul rubens studied work of leonardo da vinci, base.kwebbase.kwconnection.other, Leonardo da Vinci
Time stays long enough for those who use it., common.topic.notable_types, Quotation
Anyone who in discussion relies upon authority uses, not his understanding, but rather his memory., media_common.quotation.author, Leonardo da Vinci
leonardo da vinci influenced thomas hobbes, base.kwebbase.kwconnection.subject, Leonardo da Vinci
Time stays long enough for those who use it., media_common.quotation.author, Leonardo da Vinci
Leonardo da Vinci, law.inventor.inventions, Armored car
Niccolò Machiavelli, freebase.valuenotation.is_reviewed, Parents
Leonardo da Vinci, people.person.quotations, I have offended God and mankind because my work didn't reach the quality it should have.
Codex Forster, book.written_work.author, Leonardo da Vinci
Leonardo da Vinci, people.person.sibling_s, m.0t_6pvt
Viola organista, base.argumentmaps.original_idea.innovator, Leonardo da Vinci
Leonardo da Vinci, base.argumentmaps.original_idea.innovator, Viola organista
Peter Paul Rubens, people.person.religion, Catholicism
leonardo da vinci influenced francis bacon, base.kwebbase.kwconnection.sentence, Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work.
Leonardo da Vinci, freebase.valuenotation.is_reviewed, Parents
But the idea proved impracticable., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Codex Arundel, book.written_work.author, Leonardo da Vinci
(Four centuries later, his ideas on flight stimulated Russian aviation expert Sikorsky to develop the helicopter.), base.kwebbase.kwsentence.next_sentence, In 1506, Da Vinci was called to Milan by the French governor.
Leonardo da Vinci, people.person.employment_history, m.04d01vp
Ornithopter, law.invention.inventor, Leonardo da Vinci
Leonardo da Vinci, base.kwebbase.kwtopic.connections_to, francis bacon inspired by leonardo da vinci
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, But the idea proved impracticable.
His work related to that of Veronese., base.kwebbase.kwsentence.previous_sentence, His work influenced that of Alberti, Durer, Signorelli, Rubens  and Tartaglia.
Walter Lowenfels, people.person.gender, Male
Leonardo da Vinci, law.inventor.inventions, Viola organista
Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Quotation, type.type.properties, Incorrectly attributed to
Quotation, freebase.documented_object.documentation, m.02hylcq
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, His scientific imagination, his drawings and notebooks have inspired both artists and scientists through the centuries.
His scientific imagination, his drawings and notebooks have inspired both artists and scientists through the centuries., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Leonardo da Vinci, common.topic.subject_of, Helicopter
His scientific imagination, his drawings and notebooks have inspired both artists and scientists through the centuries., base.kwebbase.kwsentence.previous_sentence, Recognized as a genius, with immense energy and limitless curiosity which both fed and dissipated his extraordinary gifts.
Leonardo da Vinci, book.author.works_written, Art and Mathematics
m.04d01tf, people.place_lived.person, Leonardo da Vinci
Leonardo da Vinci, people.person.employment_history, m.04d01wr
Venturi wrote about his work., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Leonardo da Vinci, people.person.quotations, Nothing can be love or hated unless it is first known.
Leonardo da Vinci, people.person.nationality, Republic of Florence
Leonardo da Vinci, people.person.gender, Male
Raphael, people.person.profession, Painter
Raphael, people.person.gender, Male
leonardo da vinci inspired igor ivanovich sikorsky, base.kwebbase.kwconnection.sentence, (Four centuries later, his ideas on flight stimulated Russian aviation expert Sikorsky to develop the helicopter.)
leonardo da vinci knew gerolamo cardano, base.kwebbase.kwconnection.subject, Leonardo da Vinci
m.09yr3hq, common.webpage.topic, Leonardo da Vinci
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, In 1506, Da Vinci was called to Milan by the French governor.
Richard Feynman, people.person.profession, Scientist
While I thought that I was learning how to live, I have been learning how to die., media_common.quotation.author, Leonardo da Vinci
The Art of Invention, exhibitions.exhibition.subjects, Leonardo da Vinci
He worked on fortifications, canals and other architectural projects., base.kwebbase.kwsentence.next_sentence, He designed sets and props that were used in pageants for the duke's court.
Niccolò Machiavelli, freebase.valuenotation.is_reviewed, Date of birth
Armored car, law.invention.inventor, Leonardo da Vinci
Leonardo da Vinci, people.person.quotations, Just as courage imperils life; fear protects it.
Cuadernos de Notas, book.written_work.author, Leonardo da Vinci
Anatomist, people.profession.people_with_this_profession, Leonardo da Vinci
They have influenced thinkers, scientists and artists through the centuries., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Leonardo da Vinci, common.topic.webpage, m.09yr3hq
-- Three classes of people: Those who see. Those who see when they are shown. Those who do not see., media_common.quotation.author, Leonardo da Vinci
Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work., base.kwebbase.kwsentence.contains_connections, leonardo da vinci influenced rene descartes
Quotation, type.type.expected_by, Descriptive quote
Leonardo da Vinci, people.person.places_lived, m.04d01tf
The noblest pleasure is the joy of understanding., media_common.quotation.author, Leonardo da Vinci
Leonardo da Vinci, common.topic.webpage, m.0b6rjnm
Leonardo da Vinci, law.inventor.inventions, Aerial Screw
Leonardo da Vinci, base.kwebbase.kwtopic.connections_from, leonardo da vinci influenced thomas hobbes
Niccolò Machiavelli, freebase.valuenotation.has_value, Height
Codex Windsor, book.written_work.author, Leonardo da Vinci
m.0b6rjnm, common.webpage.topic, Leonardo da Vinci
Our life is made by the death of others., common.topic.notable_types, Quotation
leon battista alberti influenced leonardo da vinci, base.kwebbase.kwconnection.other, Leonardo da Vinci
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work.
Caterina da Vinci, people.person.children, Leonardo da Vinci
Nicolas Poussin, people.person.profession, Painter
m.04ytzw9, people.place_lived.person, Leonardo da Vinci
Leonardo da Vinci, people.person.profession, Cartographer
m.04d01vp, business.employment_tenure.person, Leonardo da Vinci
Anyone who in discussion relies upon authority uses, not his understanding, but rather his memory., common.topic.notable_types, Quotation
His work influenced that of Alberti, Durer, Signorelli, Rubens  and Tartaglia., base.kwebbase.kwsentence.next_sentence, His work related to that of Veronese.
Leonardo da Vinci, exhibitions.exhibition_subject.exhibitions_created_about_this_subject, Leonardo da Vinci and the Art of Sculpture: Inspiration and Invention
Codex Trivulzianus, book.written_work.author, Leonardo da Vinci
Leonardo da Vinci, influence.influence_node.influenced, Dan Brown
He designed sets and props that were used in pageants for the duke's court., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Topic, freebase.type_profile.published, Published
Giorgio Vasari, people.person.profession, Architect
Quotation, type.type.properties, Source
Pontormo, people.person.gender, Male
camera obscura invention credited to leonardo da vinci, base.kwebbase.kwconnection.other, Leonardo da Vinci
peter paul rubens studied work of leonardo da vinci, base.kwebbase.kwconnection.subject, Peter Paul Rubens
Leonardo da Vinci, people.person.profession, Musician
Leonardo da Vinci, people.person.quotations, The noblest pleasure is the joy of understanding.
Triple Barrel Canon, law.invention.inventor, Leonardo da Vinci
Botanist, people.profession.specialization_of, Scientist
Leonardo da Vinci, base.argumentmaps.innovator.original_ideas, Viola organista
leonardo da vinci influenced thomas hobbes, base.kwebbase.kwconnection.sentence, Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work.
Just as iron rusts from disuse, even so does inaction spoil the intellect., media_common.quotation.author, Leonardo da Vinci
Quotation, freebase.type_profile.published, Published
Codex Atlanticus, book.written_work.author, Leonardo da Vinci
Engineer, people.profession.specializations, Military Engineer
Leonardo da Vinci, people.person.quotations, -- Three classes of people: Those who see. Those who see when they are shown. Those who do not see.
Giorgione, people.person.gender, Male
Helicopter, common.topic.subjects, Leonardo da Vinci
Nicolas Poussin, people.person.gender, Male
Victor Bregeda, people.person.gender, Male
Anemometer, law.invention.inventor, Leonardo da Vinci
Leonardo da Vinci, book.illustrator.books_illustrated, De divina proportione
They have influenced thinkers, scientists and artists through the centuries., base.kwebbase.kwsentence.next_sentence, Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work.
m.09xmdxm, common.webpage.topic, Leonardo da Vinci
Niccolò Machiavelli, freebase.valuenotation.is_reviewed, Gender
As every divided kingdom falls, so every mind divided between many studies confounds and saps itself., media_common.quotation.author, Leonardo da Vinci
Leonardo da Vinci, book.author.works_written, Codex Ashburnham
Leonardo da Vinci, common.topic.notable_for, g.1254yrdl_
Leonardo da Vinci, people.person.parents, Piero Fruosino di Antonio da Vinci
m.04d01v6, business.employment_tenure.person, Leonardo da Vinci
Geologist, people.profession.specialization_of, Scientist
Leonardo, film.film.subjects, Leonardo da Vinci
Leonard of Quirm, fictional_universe.fictional_character.occupation, Inventor
Richard Feynman, freebase.valuenotation.has_value, Height
Leonardo da Vinci and the Art of Sculpture: Inspiration and Invention, exhibitions.exhibition.subjects, Sculpture
Sculpture, exhibitions.exhibition_subject.exhibitions_created_about_this_subject, Leonardo da Vinci and the Art of Sculpture: Inspiration and Invention
Niccolò Machiavelli, people.person.nationality, Republic of Florence
Bob Kane, freebase.valuenotation.is_reviewed, Place of birth
Nothing can be love or hated unless it is first known., common.topic.notable_types, Quotation
Quotation, type.type.expected_by, Quotations About This Subject
Leonardo da Vinci, people.person.sibling_s, m.0t_6qv6
Leonardo da Vinci, people.person.quotations, Just as iron rusts from disuse, even so does inaction spoil the intellect.
Leonardo da Vinci, book.book_subject.works, Da Vinci
Leonardo da Vinci, people.person.sibling_s, m.0t_6qj4
Da Vinci spent every spare moment in the pursuit of science., base.kwebbase.kwsentence.next_sentence, He dissected bodies in the hospital to learn more about anatomy.
Leonardo da Vinci, people.person.places_lived, m.05kff44
Leonardo da Vinci, people.person.sibling_s, m.0t_6qjl
Giorgio Vasari, people.person.profession, Painter
In 1506, Da Vinci was called to Milan by the French governor., base.kwebbase.kwsentence.previous_sentence, (Four centuries later, his ideas on flight stimulated Russian aviation expert Sikorsky to develop the helicopter.)
leonardo da vinci influenced rene descartes, base.kwebbase.kwconnection.sentence, Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work.
m.0c87rwf, business.employment_tenure.person, Leonardo da Vinci
Leonardo da Vinci, people.person.employment_history, m.04d01v6
Peter Paul Rubens, base.kwebbase.kwtopic.connections_from, peter paul rubens studied work of leonardo da vinci
Leonardo da Vinci, book.author.works_written, Codex Arundel
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, His work related to that of Veronese.
Leonardo da Vinci, people.person.sibling_s, m.0t_6q10
Codex Ashburnham, book.written_work.author, Leonardo da Vinci
Peter Paul Rubens, people.person.gender, Male
I have offended God and mankind because my work didn't reach the quality it should have., media_common.quotation.author, Leonardo da Vinci
Leonardo da Vinci, people.person.place_of_birth, Vinci
Raphael, freebase.valuenotation.has_value, Education
Leonardo da Vinci, influence.influence_node.influenced, Victor Bregeda
leonardo da vinci influenced francis bacon, base.kwebbase.kwconnection.subject, Leonardo da Vinci
Leonardo da Vinci, freebase.valuenotation.is_reviewed, Education
Leonardo da Vinci, common.topic.webpage, m.09x1mhs
Leonardo da Vinci, people.person.quotations, Our life is made by the death of others.
Leonardo da Vinci, common.topic.webpage, m.09xmdxm
Peter Paul Rubens, people.person.profession, Painter
Just as iron rusts from disuse, even so does inaction spoil the intellect., common.topic.notable_types, Quotation
Niccolò Machiavelli, people.person.profession, Writer
Leonardo da Vinci, freebase.valuenotation.is_reviewed, Height
Leonardo da Vinci, law.inventor.inventions, Diving suit
Leonardo da Vinci, freebase.valuenotation.has_value, Weight
Leonardo da Vinci, people.person.profession, Military Engineer
Time stays long enough for those who use it., media_common.quotation.author, Leonardo da Vinci
Double hull, law.invention.inventor, Leonardo da Vinci
Leonardo da Vinci, people.person.profession, Writer
Raphael, people.person.religion, Catholicism
Niccolò Machiavelli, freebase.valuenotation.is_reviewed, Date of death
Quotation, type.type.expected_by, Quotation
Dan Brown, people.person.profession, Writer
Leonardo da Vinci, people.person.sibling_s, m.0t_6qr2
Leonardo da Vinci, freebase.valuenotation.is_reviewed, Weight
m.04d01tl, people.place_lived.person, Leonardo da Vinci
Codex Madrid, book.written_work.author, Leonardo da Vinci
He worked with ^worked with^ Bramante., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
leonardo da vinci influenced albrecht durer, base.kwebbase.kwconnection.subject, Leonardo da Vinci
Exceptionally inventive and versatile, Da Vinci designed mobile bridges, mortars, other items of artillery, naval weapons, and armored fighting vehicles., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
His work related to that of Veronese., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Niccolò Machiavelli, people.person.gender, Male
Leonardo da Vinci, book.author.works_written, Codex Leicester
Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work., base.kwebbase.kwsentence.previous_sentence, They have influenced thinkers, scientists and artists through the centuries.
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, Recognized as a genius, with immense energy and limitless curiosity which both fed and dissipated his extraordinary gifts.
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, In 1502, Da Vinci entered the employ of Borgia, the illegitimate son of  Pope Alexander VI.
Exceptionally inventive and versatile, Da Vinci designed mobile bridges, mortars, other items of artillery, naval weapons, and armored fighting vehicles., base.kwebbase.kwsentence.next_sentence, He worked on fortifications, canals and other architectural projects.
Leonardo da Vinci, people.person.profession, Sculptor
Leonardo da Vinci, people.person.sibling_s, m.0nf375x
They have influenced thinkers, scientists and artists through the centuries., base.kwebbase.kwsentence.previous_sentence, His notebooks were a dazzling display of thought, observation, and beautiful drawings.
Degnen, Lisa, book.written_work.author, Leonardo da Vinci
Nothing can be love or hated unless it is first known., media_common.quotation.author, Leonardo da Vinci
leonardo da vinci employed by cesare borgia, base.kwebbase.kwconnection.sentence, In 1502, Da Vinci entered the employ of Borgia, the illegitimate son of  Pope Alexander VI.
Leonardo da Vinci, people.person.quotations, Common Sense is that which judges the things given to it by other senses.
Leonardo da Vinci, people.person.quotations, While I thought that I was learning how to live, I have been learning how to die.
Da Vinci spent every spare moment in the pursuit of science., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
His notebooks were a dazzling display of thought, observation, and beautiful drawings., base.kwebbase.kwsentence.next_sentence, They have influenced thinkers, scientists and artists through the centuries.
Quotation, type.type.properties, Addressee
John Argyropoulos, people.person.gender, Male
Quotation, freebase.type_profile.equivalent_topic, Quotation
Viola organista, law.invention.inventor, Leonardo da Vinci
Quotation, type.type.expected_by, Quotations about this subject
Quotation, type.type.domain, Media
m.04d01tw, business.employment_tenure.person, Leonardo da Vinci
Anatomist Vesalius and philosophers Francis Bacon, Hobbes and Descartes were all inspired by Da Vinci's work., base.kwebbase.kwsentence.contains_connections, leonardo da vinci influenced francis bacon
Leonardo da Vinci, influence.influence_node.influenced, Richard Feynman
Richard Feynman, influence.influence_node.influenced_by, Leonardo da Vinci
Leonardo da Vinci, base.kwebbase.kwtopic.has_sentences, Almost numb with boredom, Da Vinci agreed to join the service of Francis I, the young king of France.
Il paragone delle arti, book.written_work.author, Leonardo da Vinci
Leonardo da Vinci, influence.influence_node.influenced, Peter Paul Rubens
Niccolò Machiavelli, people.person.religion, Catholicism
Leonardo da Vinci, people.person.quotations, Time stays long enough for those who use it.
He worked on fortifications, canals and other architectural projects., base.kwebbase.kwsentence.previous_sentence, Exceptionally inventive and versatile, Da Vinci designed mobile bridges, mortars, other items of artillery, naval weapons, and armored fighting vehicles.
Niccolò Machiavelli, freebase.valuenotation.is_reviewed, Place of death
Quotation, type.type.properties, Date
Anatomist, people.profession.specialization_of, Scientist
Quotation, type.type.expected_by, Motto
Leonardo da Vinci, people.person.quotations, Men of lofty genius when they are doing the least work are most active.
Leonardo da Vinci, people.person.quotations, As every divided kingdom falls, so every mind divided between many studies confounds and saps itself.
Quotation, type.type.expected_by, Favorite Quote
I have offended God and mankind because my work didn't reach the quality it should have., common.topic.notable_types, Quotation
Caterina da Vinci, freebase.valuenotation.has_value, Parents
In 1502, Da Vinci entered the employ of Borgia, the illegitimate son of  Pope Alexander VI., base.kwebbase.kwsentence.contains_connections, leonardo da vinci employed by cesare borgia
Bernardino Luini, people.person.gender, Male
Leonardo da Vinci, people.person.places_lived, m.04d01tl
Leonardo da Vinci, people.person.quotations, Anyone who in discussion relies upon authority uses, not his understanding, but rather his memory.
John Argyropoulos, influence.influence_node.influenced, Leonardo da Vinci
Annunciation, visual_art.artwork.art_form, Painting
francis bacon inspired by leonardo da vinci, base.kwebbase.kwconnection.other, Leonardo da Vinci
His work influenced that of Alberti, Durer, Signorelli, Rubens  and Tartaglia., base.kwebbase.kwsentence.kwtopic, Leonardo da Vinci
Richard Feynman, people.person.gender, Male
Leonardo da Vinci, law.inventor.inventions, Parachute
As a well-spent day brings happy sleep, so a life well spent brings happy death., media_common.quotation.author, Leonardo da Vinci
Annunciation, visual_art.artwork.artist, Leonardo da Vinci
Art and Mathematics, book.written_work.author, Leonardo da Vinci
Aerial Screw, law.invention.inventor, Leonardo da Vinci
Quotation, type.type.properties, Author
Leonardo da Vinci, people.person.religion, Catholicism

Answer: Viola organista