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 invented morse code? 
Knowledge Triplets: Gallery of the Louvre, visual_art.artwork.art_form, Painting
m.09wcyzw, common.webpage.in_index, Entertainment Weekly annotation index
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Morse and his partners agreed to this arrangement and Kendall proved to be an effective  negotiator on their behalf.
New York City, base.biblioness.bibs_location.country, United States of America
m.0n1lmkh, education.education.student, Samuel Morse
J38TelegraphKey, common.image.size, m.0kjjsw
Invention, freebase.type_hints.included_types, Topic
Samuel Morse, people.deceased_person.place_of_burial, Green-Wood Cemetery
Inventor, freebase.type_profile.published, Published
Samuel Morse, people.deceased_person.cause_of_death, Pneumonia
Samuel Morse, people.person.education, m.0h139nk
Samuel Morse, freebase.valuenotation.is_reviewed, Place of death
Samuel Morse, people.person.sibling_s, m.0k6ljcj
Samuel Morse, visual_art.visual_artist.art_forms, Painting
Samuel Morse, base.kwebbase.kwtopic.has_sentences, His talent for art became apparent in his third year.
Invention, freebase.type_profile.kind, Definition
Samuel Morse, people.person.place_of_birth, Charlestown, Boston
Samuel Morse, people.person.religion, Unitarian Universalism
Samuel Morse, people.person.profession, Visual Artist
Jedidiah Morse, people.person.nationality, United States of America
Samuel Morse, base.kwebbase.kwtopic.has_sentences, They agreed and, in July of 1811, he set sail for England with Allston.
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse his work preceded by charles wheatstone
Inventions, rdf-schema#domain, Inventor
Samuel Morse, base.kwebbase.kwtopic.has_sentences, His work related to that of Nobel and  Mach.
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Taught one of  Perry's lieutenants Did portrait of Noah Webster.
Samuel Morse, people.person.spouse_s, m.0j6bxkm
Samuel Morse, base.kwebbase.kwtopic.has_sentences, It was in Rome that he met Fenimore Cooper.
Samuel Morse, people.person.children, Susan Morse
Samuel Morse, base.kwebbase.kwtopic.has_sentences, By 1835, he had developed a crude device capable of transmitting messages across a room.
Samuel Morse, people.person.profession, Inventor
Inventor, freebase.type_hints.included_types, Topic
United States of America, base.biblioness.bibs_topic.is_really, United States of America
Samuel Morse, visual_art.visual_artist.artworks, Gallery of the Louvre
Samuel Morse, people.person.profession, Painter
Samuel Morse, freebase.valuenotation.is_reviewed, Date of death
Samuel Morse, symbols.name_source.namesakes, Morse code
Samuel Morse, influence.influence_node.influenced, Jeremiah Gurney
Morse code, symbols.namesake.named_after, Samuel Morse
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse a patron was benjamin west
Samuel Morse, freebase.valuenotation.is_reviewed, Country of nationality
Invention, common.topic.article, m.0dgm6_m
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse work related to william sturgeon
National Academy Museum and School, education.educational_institution_campus.educational_institution, National Academy Museum and School
Morse code, common.topic.notable_for, g.1255hg3gm
J38TelegraphKey, common.image.appears_in_topic_gallery, Morse code
Samuel Morse, base.kwebbase.kwtopic.has_sentences, From the lectures of his friend, James Freeman Dana, Morse also found out about Sturgeon's new electromagnet.
Samuel Morse, base.kwebbase.kwtopic.has_sentences, In February of the following year, Morse and Vail demonstrated the telegraph at the Franklin Institute, in Philadelphia.
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Alfred Vail, a student at UCNY, joined the experiment in September 1837,  bringing mechanical skills and money to the project.
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse painted portrait of noah webster
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Over the years, Morse made hundreds of thousands of dollars in fees.
National Academy Museum and School, organization.organization.founders, Samuel Morse
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Morse (with Maury) advised on the project.
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse agent for louis daguerre
Inventor, freebase.type_profile.strict_included_types, Topic
Jedidiah Morse, people.person.children, Samuel Morse
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Russia was uninterested in his invention , and the English already had a similar invention by Wheatstone.
Artist, people.profession.specializations, Visual Artist
United States of America, location.country.administrative_divisions, New York City
Samuel Morse, law.inventor.us_patents, 1647
Samuel Morse, people.person.parents, Elizabeth Ann Finley Breese
Morse code, symbols.namesake.named_after, Samuel Morse
Samuel Morse, symbols.name_source.namesakes, 8672 Morse
Invention, freebase.type_profile.strict_included_types, Non-Agent
Morse code, common.topic.image, J38TelegraphKey
Invention, freebase.type_profile.equivalent_topic, Invention
Samuel Morse, people.person.children, Edward Morse
Morse code, base.skosbase.vocabulary_equivalent_topic.equivalent_concept, Morse code
samuel finley breese morse telegraphed news of james knox polk, base.kwebbase.kwconnection.sentence, He transmitted news of  Polk's election.
Inventions, rdf-schema#range, Invention
Invention, type.type.properties, Patents
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Painting the eighty figures involved was a huge undertaking, but Morse enjoyed the creative challenge.
Samuel Morse, visual_art.art_subject.artwork_on_the_subject, Gallery of the Louvre
Morse code, base.skosbase.skos_concept.in_scheme, Authorities Concept Scheme
Morse code, base.schemastaging.context_name.pronunciation, g.125_nqpqz
Samuel Morse, people.person.parents, Jedidiah Morse
m.0h139nk, education.education.student, Samuel Morse
m.03pf8g7, people.place_lived.person, Samuel Morse
Samuel Morse, common.topic.notable_types, Inventor
Visual Artist, people.profession.specialization_of, Artist
New York City, location.location.containedby, United States of America
Samuel Morse, people.person.children, Samuel Morse
Samuel Morse, common.topic.image, Samuel Morse 1840
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse work related to alfred bernhard nobel
Morse code, base.skosbase.skos_concept.broader, Radio
Samuel Morse, people.person.spouse_s, m.0j69cpv
m.09wcyzw, common.webpage.topic, Morse code
National Academy Museum and School, travel.tourist_attraction.near_travel_destination, New York City
Samuel Morse, law.inventor.inventions, Morse code
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse work related to matthew calbraith perry
m.07nfb9k, base.ontologies.ontology_instance_mapping.ontology, OpenCyc
Inventions, type.property.master_property, Inventor
Samuel Morse, base.kwebbase.kwtopic.has_sentences, In 1854, the American entrepreneur Field wrote to Morse, suggesting a transatlantic cable between Ireland and Newfoundland.
Invention, type.type.properties, Date of invention
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse telegraphed news of james knox polk
Samuel Morse, law.inventor.inventions, Improvement in Electro-Magnetic Telegraphs
Inventor, freebase.type_profile.equivalent_topic, Inventor
Samuel Morse, people.person.places_lived, m.07yfvxl
Invention, type.type.expected_by, Associated Inventions
Samuel Morse, organization.organization_founder.organizations_founded, National Academy Museum and School
Charles Grafton Page, people.person.gender, Male
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Trumbull got the Rotunda art commission.
Gallery of the Louvre, exhibitions.exhibition_subject.exhibitions_created_about_this_subject, Gallery of the Louvre by Samuel F.B. Morse
Jedidiah Morse, people.person.gender, Male
Samuel Morse, people.person.nationality, United States of America
Samuel Morse, common.topic.notable_for, g.125689vs0
Morse code, law.invention.inventor, Samuel Morse
Samuel Morse, base.kwebbase.kwtopic.has_sentences, At first, by means of a special plough developed by Cornell, the wires were laid underground.
Samuel Morse, common.topic.article, m.06q6z
Artist, people.profession.specializations, Painter
Gallery of the Louvre, visual_art.artwork.art_subject, Samuel Morse
Charles Grafton Page, influence.influence_node.influenced, Samuel Morse
National Academy Museum and School, education.educational_institution.campuses, National Academy Museum and School
Morse code, base.skosbase.skos_concept.equivalent_topic, Morse code
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse agent was amos kendall
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse his work preceded by carl friedrich gauss
Morse code, base.skosbase.skos_concept.broader, Telegraph--Alphabets
m.0j6bxkm, people.marriage.spouse, Samuel Morse
Samuel Morse, people.person.gender, Male
Inventor, type.type.domain, Law
Charlestown, Boston, location.location.containedby, United States of America
Samuel Morse, base.kwebbase.kwtopic.has_sentences, In May 1838, Morse sailed again for Europe to register patents on his invention, but without success.
Samuel Morse, exhibitions.exhibition_subject.exhibitions_created_about_this_subject, Gallery of the Louvre by Samuel F.B. Morse
Samuel Morse, people.person.children, James Morse
Samuel Morse, symbols.name_source.namesakes, Morse
Samuel Morse, people.deceased_person.place_of_death, New York City
Charlestown, Boston, base.biblioness.bibs_location.country, United States of America
Painter, people.profession.specialization_of, Artist
Samuel Morse, people.person.education, m.0n17sc9
Samuel Morse, people.person.places_lived, m.03pf8g7
Morse code, base.ontologies.ontology_instance.equivalent_instances, m.07nfb9k
Samuel Morse, base.kwebbase.kwtopic.has_sentences, However the insulating pipes were defective so, as Wheatstone had done, Morse used overhead lines.
Morse code, base.skosbase.skos_concept.broader, Signals and signaling
Samuel Morse, book.author.works_written, Morse exhibition of arts and science
Samuel Morse, base.kwebbase.kwtopic.has_sentences, By November of 1837, they had managed to send electrical impulses ten miles.
Samuel Morse, base.kwebbase.kwtopic.has_sentences, In London Morse was soon taken under the wing of Royal Academy President, American artist Benjamin West.
Morse code, common.topic.image, 1922 Chart of the Morse Code Letters and Numerals
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse met james fenimore cooper
Charlestown, Boston, location.location.people_born_here, Samuel Morse
Samuel Morse, people.person.children, Cornelia Morse
Invention, type.type.properties, Inventor
Samuel Morse, freebase.valuenotation.is_reviewed, Cause of death
m.07nfb9k, base.ontologies.ontology_instance_mapping.freebase_topic, Morse code
Samuel Morse, base.argumentmaps.innovator.original_ideas, Improvement in Electro-Magnetic Telegraphs
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse painted portrait of marquis de lafayette
Inventions, type.property.expected_type, Invention
Inventions, type.property.schema, Inventor
Morse code, base.skosbase.skos_concept.in_scheme, Topical Terms Concept Scheme
Invention, freebase.type_profile.published, Published
Samuel Morse, base.kwebbase.kwtopic.has_sentences, He was also granted a patent for his telegraph.
Samuel Morse, symbols.name_source.namesakes, Morse College
samuel finley breese morse telegraphed news of james knox polk, base.kwebbase.kwconnection.subject, Samuel Morse
United States of America, base.biblioness.bibs_topic.subsumes, United States of America
Invention, type.type.expected_by, Inventions
Samuel Morse, base.kwebbase.kwtopic.has_sentences, He transmitted news of  Polk's election.
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse helped samuel colt
m.0n17sc9, education.education.student, Samuel Morse
Morse code, common.topic.article, m.04sbg
m.09wcyzw, common.webpage.resource, Cannes report: Roger Ebert, 'A Prophet,' and a trend that ought to end
m.07yfvxl, people.place_lived.person, Samuel Morse
1922 Chart of the Morse Code Letters and Numerals, common.image.appears_in_topic_gallery, Morse code
Invention, freebase.type_profile.strict_included_types, Topic
Inventor, type.type.expected_by, Inventor
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Morse retired to a quiet old age.
Charles Grafton Page, people.person.nationality, United States of America
New York City, location.administrative_division.country, United States of America
Morse code, common.topic.webpage, m.09wcyzw
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Morse felt that there must be some way to use electricity to send messages.
New York City, base.biblioness.bibs_topic.is_really, New York City
New York City, location.hud_county_place.place, New York City
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse learned from joseph henry
m.0rp668m, people.sibling_relationship.sibling, Samuel Morse
Gallery of the Louvre, visual_art.artwork.artist, Samuel Morse
New York City, base.biblioness.bibs_topic.subsumes, New York City
Samuel Morse, organization.organization_founder.organizations_founded, Western Union
Samuel Morse, people.person.sibling_s, m.0rp668m
Samuel Morse, base.kwebbase.kwtopic.has_sentences, After meeting Allston, he asked his parents for the money to study under the painter and to visit Europe.
m.0k6ljcj, people.sibling_relationship.sibling, Samuel Morse
New York City, travel.travel_destination.tourist_attractions, National Academy Museum and School
1922 Chart of the Morse Code Letters and Numerals, common.image.size, m.02bgh29
Samuel Morse, base.kwebbase.kwtopic.has_sentences, He began work on 'The House of Representatives' in the winter of 1822.
Samuel Morse, people.person.children, Charles Morse
Inventor, freebase.equivalent_topic.equivalent_type, Inventor
m.0j69cpv, people.marriage.spouse, Samuel Morse
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse painted portrait of james monroe
Samuel Morse, people.person.education, m.0n1lmkh
Inventor, type.type.properties, Inventions
Morse code, base.skosbase.skos_concept.broader, Cipher and telegraph codes
J38TelegraphKey, common.image.appears_in_topic_gallery, Telegraph key
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Work began on the construction of a long distance communication line along a forty-mile stretch between Baltimore and Washington.
Samuel Morse, common.topic.image, Samuel F. B. Morse
Samuel Morse, base.kwebbase.kwtopic.has_sentences, Helped Colt with an experiment.
Invention, type.type.domain, Law
Morse code, common.topic.notable_types, Invention
Samuel Morse, common.topic.image, Samuel Finley Breese Morse - Daguerreotype -3g12153v
Samuel Morse, freebase.valuenotation.is_reviewed, Place of birth
Samuel Morse, freebase.valuenotation.is_reviewed, Date of birth
Samuel Morse, people.person.children, William Morse
Samuel Morse, people.person.profession, Artist
Cannes report: Roger Ebert, 'A Prophet,' and a trend that ought to end, common.resource.annotations, m.09wcyzw
Samuel Morse, book.author.works_written, Fine arts
Samuel Morse, base.kwebbase.kwtopic.connections_from, samuel finley breese morse taught by washington allston
Samuel Morse, influence.influence_node.influenced_by, Charles Grafton Page

Answer: Samuel Morse