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 thing was invented by both Thomas Edison and Joseph Swan? 
Knowledge Triplets: Joseph Swan, common.topic.notable_types, Inventor
Joseph Swan, base.kwebbase.kwtopic.has_sentences, Benwell, outside Newcastle.
thomas alva edison work related to reginald aubrey fessenden, base.kwebbase.kwconnection.sentence, His work related to that of Gould, Porter, Lumiere, Berzelius, Fessenden, Welsbach, and Sperry.
The Papers of Thomas A. Edison, Vol. 4: The Wizard of Menlo Park, 1878, common.topic.notable_for, g.125fhhhdd
He had also invented the stock printer and made improvements to the typewriter., base.kwebbase.kwsentence.previous_sentence, By 1874, he had produced a system allowing four messages to be sent along one telegraph wire.
thomas alva edison work related to reginald aubrey fessenden, base.kwebbase.kwconnection.subject, Thomas Edison
Thomas Edison, base.kwebbase.kwtopic.connections_to, hermann johann philipp sprengel made possible light of thomas alva edison
The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874, common.topic.notable_types, Book
Phonograph, base.argumentmaps.original_idea.innovator, Thomas Edison
The Papers of Thomas A. Edison, Vol. 5: Research to Development at Menlo Park, January 1879-March 1881, book.written_work.part_of_series, The Papers of Thomas A. Edison
In 1879, Edison perfected the incandescent electric lamp by using carbonized cotton that burned for forty-five hours., base.kwebbase.kwsentence.kwtopic, Thomas Edison
Edison had also produced a commercial electric lamp in the United States but, unlike Swan, had patented his ideas., base.kwebbase.kwsentence.kwtopic, Joseph Swan
Thomas Edison, base.kwebbase.kwtopic.connections_from, thomas alva edison used film invented by hannibal goodwin
Thomas Edison, base.kwebbase.kwtopic.has_sentences, The two men soon pooled their talent and Pope, Edison and Company was established.
thomas alva edison inspired by eadweard muybridge, base.kwebbase.kwconnection.other, Eadweard Muybridge
Joseph Swan, award.award_winner.awards_won, m.0x2gdqk
With the profits, he bought Menlo Park, New Jersey and set up an establishment purely for research and invention., base.kwebbase.kwsentence.kwtopic, Thomas Edison
thomas alva edison inspired by eadweard muybridge, base.kwebbase.kwconnection.relation, inspired by
1883., base.kwebbase.kwsentence.previous_sentence, Edison had also produced a commercial electric lamp in the United States but, unlike Swan, had patented his ideas.
The Papers of Thomas A. Edison, Vol. 5: Research to Development at Menlo Park, January 1879-March 1881, base.documentaryeditions.documentary_edition.editing_project, The Thomas A. Edison Papers Project
Thomas Edison, book.author.works_written, The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874
Inventor Edison Sketched by World Artist, common.topic.notable_for, g.1q3sg386c
Thomas Edison, law.inventor.inventions, Phonograph cylinder
Joseph Wilson Swan, common.image.size, m.02bc39c
The next obstacle was the problem of the burnt carbon blackening the glass., base.kwebbase.kwsentence.kwtopic, Joseph Swan
Thomas Edison, law.inventor.inventions, Movie camera
Joseph Swan, base.kwebbase.kwtopic.connections_to, thomas alva edison rival was joseph wilson swan
Joseph Swan, people.person.nationality, England
Thomas Edison, base.kwebbase.kwtopic.connections_from, thomas alva edison work used by emile berliner
Joseph Swan, base.kwebbase.kwtopic.has_sentences, Despite this success, he had come up against technical difficulties in creating a vacuum and providing the necessary electrical power.
He had also invented the stock printer and made improvements to the typewriter., base.kwebbase.kwsentence.kwtopic, Thomas Edison
Joseph Swan, base.kwebbase.kwtopic.has_sentences, 1883.
Edison and Swan Electric Light Company, common.topic.notable_types, Organization
william george armstrong, 1st baron armstrong a pal was joseph wilson swan, base.kwebbase.kwconnection.other, Joseph Swan
Joseph Swan, people.person.nationality, United Kingdom
joseph wilson swan partnered with rival thomas alva edison, base.kwebbase.kwconnection.subject, Joseph Swan
Joseph Swan, base.kwebbase.kwtopic.connections_to, hermann johann philipp sprengel made possible light of joseph wilson swan
The Papers of Thomas A. Edison, Vol. 5: Research to Development at Menlo Park, January 1879-March 1881, book.written_work.next_in_series, The Papers of Thomas A. Edison, Vol. 6: Electrifying New York and Abroad, April 1881-June 1883
In his later work, Swan contributed to the areas of electroplating, electric cells and the production of artificial fibres., base.kwebbase.kwsentence.kwtopic, Joseph Swan
Joseph Swan, base.kwebbase.kwtopic.connections_from, joseph wilson swan partnered with rival thomas alva edison
m.0zdcdgx, business.employment_tenure.person, Joseph Swan
lee de forest work related to thomas alva edison, base.kwebbase.kwconnection.sentence, In 1912, Edison was working on picture projectors and disk phonographs which could be synchronized to show a talking picture.
Thomas Edison, people.person.quotations, I am proud of the fact that I never invented weapons to kill.
jay gould bought patents of thomas alva edison, base.kwebbase.kwconnection.other, Thomas Edison
The company's transmitter had stopped working, so Edison repaired the fault and became a full-time employee., base.kwebbase.kwsentence.next_sentence, The two men soon pooled their talent and Pope, Edison and Company was established.
Thomas Edison, base.kwebbase.kwtopic.has_sentences, He used celluloid film invented by Goodwin.
joseph wilson swan partnered with rival thomas alva edison, base.kwebbase.kwconnection.other, Thomas Edison
emile berliner work related to thomas alva edison, base.kwebbase.kwconnection.sentence, Edison had also invented an improved telephone transmitter and had sold it to Bell's biggest competitor.
Benwell, outside Newcastle., base.kwebbase.kwsentence.kwtopic, Joseph Swan
hermann johann philipp sprengel made possible light of thomas alva edison, base.kwebbase.kwconnection.other, Thomas Edison
In 1879, Edison perfected the incandescent electric lamp by using carbonized cotton that burned for forty-five hours., base.kwebbase.kwsentence.dates, m.0c14p0s
He used Sprengel's pump., base.kwebbase.kwsentence.contains_connections, thomas alva edison used invention by hermann johann philipp sprengel
thomas alva edison work related to jons jakob berzelius, base.kwebbase.kwconnection.sentence, His work related to that of Gould, Porter, Lumiere, Berzelius, Fessenden, Welsbach, and Sperry.
Incandescent light bulb, law.us_patent.inventor, Thomas Edison
Thomas Edison, common.topic.image, Thomas Edison
william crookes work related to joseph wilson swan, base.kwebbase.kwconnection.relation, work related to
Joseph Swan, law.inventor.inventions, Incandescent light bulb
Thomas Edison, base.kwebbase.kwtopic.has_sentences, Edison produced his 'gold ticker' and their company profited when the ticker was sold to Western Union.
His next venture involved improving generator output, resulting in the Edison system of current distribution in parallel circuit., base.kwebbase.kwsentence.kwtopic, Thomas Edison
Thomas Edison, base.kwebbase.kwtopic.has_sentences, His inspiration for these projects came from the photographer, Muybridge and the physiologist Marey.
william george armstrong, 1st baron armstrong a pal was joseph wilson swan, base.kwebbase.kwconnection.relation, a pal was
hermann johann philipp sprengel made possible light of joseph wilson swan, base.kwebbase.kwconnection.other, Joseph Swan
william crookes work related to joseph wilson swan, base.kwebbase.kwconnection.subject, William Crookes
1883., base.kwebbase.kwsentence.next_sentence, In his later work, Swan contributed to the areas of electroplating, electric cells and the production of artificial fibres.
By 1855, he had produced strong, flexible filament spirals., base.kwebbase.kwsentence.kwtopic, Joseph Swan
Thomas Edison, law.invention.inventor, Incandescent light bulb
Original carbon-filament bulb from Thomas Edison, common.image.appears_in_topic_gallery, Incandescent light bulb
Inventor Edison Sketched by World Artist, common.topic.notable_types, Film
The Papers of Thomas A. Edison, Vol. 5: Research to Development at Menlo Park, January 1879-March 1881, common.topic.notable_for, g.1256y3056
By 1891 he commissioned the first motion picture with Eastman,  and then opened the first Kinetoscope Parlour in 1894., base.kwebbase.kwsentence.kwtopic, Thomas Edison
thomas alva edison work used by emile berliner, base.kwebbase.kwconnection.subject, Thomas Edison
thomas alva edison rival was joseph wilson swan, base.kwebbase.kwconnection.subject, Thomas Edison
Edison Illuminating Company, organization.organization.founders, Thomas Edison
Movie camera, law.invention.inventor, Thomas Edison
Inventor Edison Sketched by World Artist, film.film.directed_by, James H. White
thomas alva edison inspired by eadweard muybridge, base.kwebbase.kwconnection.subject, Thomas Edison
The Papers of Thomas A. Edison, Vol. 4: The Wizard of Menlo Park, 1878, book.written_work.author, Thomas Edison
Quadruplex telegraph, law.invention.inventor, Thomas Edison
Inventor Edison Sketched by World Artist, film.film.produced_by, Thomas Edison
Edison and Swan Electric Light Company, organization.organization.parent, m.0123vdtp
Inventor Edison Sketched by World Artist, film.film.starring, m.0_m0pf0
Motion Picture Patents Company, organization.organization.founders, Thomas Edison
Thomas Edison, common.topic.article, m.07bv7
Thomas Edison, law.inventor.inventions, Electric Power Distribution
The Papers of Thomas A. Edison, Vol. 2: From Workshop to Laboratory, June 1873-March 1876, book.written_work.previous_in_series, The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874
thomas alva edison used invention by hermann johann philipp sprengel, base.kwebbase.kwconnection.relation, used invention by
Joseph Swan, base.kwebbase.kwtopic.connections_to, william crookes work related to joseph wilson swan
Joseph Wilson Swan, common.image.appears_in_topic_gallery, Joseph Swan
thomas alva edison work used by emile berliner, base.kwebbase.kwconnection.other, Emile Berliner
thomas alva edison used film invented by hannibal goodwin, base.kwebbase.kwconnection.subject, Thomas Edison
Thomas Edison, people.person.profession, Inventor
Edison had also produced a commercial electric lamp in the United States but, unlike Swan, had patented his ideas., base.kwebbase.kwsentence.next_sentence, 1883.
Joseph Swan, base.kwebbase.kwtopic.has_sentences, In his later work, Swan contributed to the areas of electroplating, electric cells and the production of artificial fibres.
Joseph Swan, base.kwebbase.kwtopic.has_sentences, He invented the electric light, which, in turn, boosted the development and expansion of the new electrical industry.
Thomas Edison, law.inventor.us_patents, Incandescent light bulb
Thomas Edison, base.kwebbase.kwtopic.has_sentences, By 1891 he commissioned the first motion picture with Eastman,  and then opened the first Kinetoscope Parlour in 1894.
The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874, book.written_work.author, Thomas Edison
Thomas Edison, law.inventor.us_patents, Mimeograph
His work related to that of Gould, Porter, Lumiere, Berzelius, Fessenden, Welsbach, and Sperry., base.kwebbase.kwsentence.kwtopic, Thomas Edison
thomas alva edison work used by emile berliner, base.kwebbase.kwconnection.relation, work used by
thomas alva edison used invention by hermann johann philipp sprengel, base.kwebbase.kwconnection.sentence, He used Sprengel's pump.
Edison had also invented an improved telephone transmitter and had sold it to Bell's biggest competitor., base.kwebbase.kwsentence.contains_connections, emile berliner work related to thomas alva edison
Edison and Swan Electric Light Company, common.topic.notable_for, g.1q3sgdms1
Joseph Swan, base.kwebbase.kwtopic.has_sentences, During his chemistry apprenticeship, Swan joined the Sunderland Athenaeum library, where he came across the 'Repertory of Patent Inventions'.
etienne-jules marey inspired thomas alva edison, base.kwebbase.kwconnection.sentence, At the Universal Exposition of 1899, held in Paris, France, Marey met Edison and provided the inspiration for Edison's kinetescope.
He used Sprengel's pump., base.kwebbase.kwsentence.kwtopic, Thomas Edison
The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874, book.book.editions, The Papers of Thomas A. Edison, Vol. 1
william crookes work related to joseph wilson swan, base.kwebbase.kwconnection.other, Joseph Swan
James H. White, film.cinematographer.film, Inventor Edison Sketched by World Artist
The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874, common.topic.notable_for, g.125gv6pkw
Joseph Swan, people.person.employment_history, m.0zdcdgx
Joseph Swan, base.kwebbase.kwtopic.has_sentences, Then he discovered Faraday's dynamo in the early 1870s.
thomas alva edison work related to carl auer von welsbach, base.kwebbase.kwconnection.sentence, His work related to that of Gould, Porter, Lumiere, Berzelius, Fessenden, Welsbach, and Sperry.
Thomas Edison, base.kwebbase.kwtopic.connections_to, jay gould bought patents of thomas alva edison
#223898, law.us_patent.inventor, Thomas Edison
Thomas Edison, book.author.works_written, The beginning of the incandescent lamp and lighting system
1883., base.kwebbase.kwsentence.kwtopic, Joseph Swan
Joseph Swan, law.invention.inventor, Incandescent light bulb
I am proud of the fact that I never invented weapons to kill., media_common.quotation.author, Thomas Edison
Thomas Edison, law.inventor.us_patents, #223898
Incandescent light bulb, law.invention.inventor, Thomas Edison
Phonograph, law.invention.inventor, Thomas Edison
Joseph Swan, base.kwebbase.kwtopic.has_sentences, He also developed a miner's safety lamp and a new lead cell battery which would not spill acid.
He used celluloid film invented by Goodwin., base.kwebbase.kwsentence.contains_connections, thomas alva edison used film invented by hannibal goodwin
Thomas Edison, common.topic.webpage, m.04v76x_
Thomas Edison, base.kwebbase.kwtopic.has_sentences, In 1879, Edison perfected the incandescent electric lamp by using carbonized cotton that burned for forty-five hours.
thomas alva edison employed arthur edwin kennelly, base.kwebbase.kwconnection.subject, Thomas Edison
Phonograph cylinder, law.invention.inventor, Thomas Edison
thomas alva edison work related to edwin stanton porter, base.kwebbase.kwconnection.sentence, His work related to that of Gould, Porter, Lumiere, Berzelius, Fessenden, Welsbach, and Sperry.
thomas alva edison rival was joseph wilson swan, base.kwebbase.kwconnection.other, Joseph Swan
He also developed a miner's safety lamp and a new lead cell battery which would not spill acid., base.kwebbase.kwsentence.kwtopic, Joseph Swan
The Wonders of Magnetism, film.film.produced_by, Thomas Edison
Thomas Edison, book.author.works_written, The Papers of Thomas A. Edison, Vol. 5: Research to Development at Menlo Park, January 1879-March 1881
thomas alva edison inspired by eadweard muybridge, base.kwebbase.kwconnection.sentence, His inspiration for these projects came from the photographer, Muybridge and the physiologist Marey.
In his later work, Swan contributed to the areas of electroplating, electric cells and the production of artificial fibres., base.kwebbase.kwsentence.previous_sentence, 1883.
thomas alva edison used invention by hermann johann philipp sprengel, base.kwebbase.kwconnection.other, Hermann Sprengel
By 1874, he had produced a system allowing four messages to be sent along one telegraph wire., base.kwebbase.kwsentence.kwtopic, Thomas Edison
Inventor Edison Sketched by World Artist, film.film.cinematography, William Heise
m.0123vdtp, organization.organization_relationship.child, Edison and Swan Electric Light Company
carl auer von welsbach knew thomas alva edison, base.kwebbase.kwconnection.sentence, Welsbach was acquainted with Edison and he used cerium discovered by Berzelius.
thomas alva edison used film invented by hannibal goodwin, base.kwebbase.kwconnection.sentence, He used celluloid film invented by Goodwin.
Edison had also produced a commercial electric lamp in the United States but, unlike Swan, had patented his ideas., base.kwebbase.kwsentence.contains_connections, joseph wilson swan partnered with rival thomas alva edison
Thomas Edison, law.inventor.inventions, Incandescent light bulb
Edison and Swan Electric Light Company, organization.organization.founders, Joseph Swan
Joseph Swan, base.kwebbase.kwtopic.has_sentences, By 1855, he had produced strong, flexible filament spirals.
thomas alva edison used film invented by hannibal goodwin, base.kwebbase.kwconnection.other, Hannibal Goodwin
James H. White, film.director.film, Inventor Edison Sketched by World Artist
Thomas Edison, organization.organization_founder.organizations_founded, Motion Picture Patents Company
Inventor Edison Sketched by World Artist, film.film.starring, m.0_m0pfd
In his later work, Swan contributed to the areas of electroplating, electric cells and the production of artificial fibres., base.kwebbase.kwsentence.next_sentence, He also developed a miner's safety lamp and a new lead cell battery which would not spill acid.
The beginning of the incandescent lamp and lighting system, book.written_work.author, Thomas Edison
Thomas Edison, people.person.quotations, Great ideas originate in the muscles.
The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874, base.documentaryeditions.documentary_edition.editing_project, The Thomas A. Edison Papers Project
Thomas Edison, base.kwebbase.kwtopic.has_sentences, With the profits, he bought Menlo Park, New Jersey and set up an establishment purely for research and invention.
Then he discovered Faraday's dynamo in the early 1870s., base.kwebbase.kwsentence.kwtopic, Joseph Swan
joseph wilson swan partnered with rival thomas alva edison, base.kwebbase.kwconnection.relation, partnered with rival
Thomas Edison, law.inventor.inventions, Phonograph
He soon found himself working for Edison, but their two contrasting personalities quickly found Tesla working for Westinghouse., base.kwebbase.kwsentence.contains_connections, nikola tesla worked for thomas alva edison
Edison produced his 'gold ticker' and their company profited when the ticker was sold to Western Union., base.kwebbase.kwsentence.previous_sentence, The two men soon pooled their talent and Pope, Edison and Company was established.
In 1859, Edison got a job selling newspapers and candies on the local railway at Port Huron, Michigan., base.kwebbase.kwsentence.kwtopic, Thomas Edison
Carbon microphone, law.invention.inventor, Thomas Edison
Thomas Edison, law.inventor.inventions, Mimeograph
Joseph Swan, people.person.place_of_birth, Bishopwearmouth
General Electric, organization.organization.founders, Thomas Edison
The two men soon pooled their talent and Pope, Edison and Company was established., base.kwebbase.kwsentence.previous_sentence, The company's transmitter had stopped working, so Edison repaired the fault and became a full-time employee.
thomas alva edison work related to carl auer von welsbach, base.kwebbase.kwconnection.subject, Thomas Edison
Thomas Edison, base.kwebbase.kwtopic.connections_from, thomas alva edison inspired by eadweard muybridge
Electric Power Distribution, law.invention.inventor, Thomas Edison
Thomas Edison, film.producer.film, Inventor Edison Sketched by World Artist
Inventor Edison Sketched by World Artist, film.film.cinematography, James H. White
Thomas Edison, common.topic.image, Thomas Edison2
Thomas Edison, base.kwebbase.kwtopic.has_sentences, His next venture involved improving generator output, resulting in the Edison system of current distribution in parallel circuit.
Joseph Swan, common.topic.article, m.0109v0
Thomas Edison, base.kwebbase.kwtopic.has_sentences, His work related to that of Gould, Porter, Lumiere, Berzelius, Fessenden, Welsbach, and Sperry.
Edison produced his 'gold ticker' and their company profited when the ticker was sold to Western Union., base.kwebbase.kwsentence.kwtopic, Thomas Edison
The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874, book.written_work.next_in_series, The Papers of Thomas A. Edison, Vol. 2: From Workshop to Laboratory, June 1873-March 1876
Joseph Swan, organization.organization_founder.organizations_founded, MacDermid Autotype
thomas alva edison rival was joseph wilson swan, base.kwebbase.kwconnection.relation, rival was
Inventor Edison Sketched by World Artist, film.film.personal_appearances, m.0pl2ylj
William Crookes, base.kwebbase.kwtopic.connections_from, william crookes work related to joseph wilson swan
The Papers of Thomas A. Edison, book.literary_series.works_in_this_series, The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874
Joseph Swan, base.kwebbase.kwtopic.has_sentences, Edison had also produced a commercial electric lamp in the United States but, unlike Swan, had patented his ideas.
Joseph Swan, base.kwebbase.kwtopic.connections_to, william george armstrong, 1st baron armstrong a pal was joseph wilson swan
MacDermid Autotype, organization.organization.founders, Joseph Swan
thomas alva edison employed edward goodrich acheson, base.kwebbase.kwconnection.subject, Thomas Edison
Joseph Swan, people.person.profession, Chemist
Joseph Swan, common.topic.image, Joseph Wilson Swan
hermann johann philipp sprengel made possible light of joseph wilson swan, base.kwebbase.kwconnection.subject, Hermann Sprengel
Thomas Edison, common.topic.webpage, m.09xxbfd
thomas alva edison work related to elmer ambrose sperry, base.kwebbase.kwconnection.sentence, His work related to that of Gould, Porter, Lumiere, Berzelius, Fessenden, Welsbach, and Sperry.
Thomas Edison, common.image.appears_in_topic_gallery, Thomas Edison
Thomas Edison, law.inventor.inventions, Carbon microphone
Joseph Swan, people.person.profession, Physicist
Edison noticed that at high speed this gave out a rising and falling,  almost musical sound., base.kwebbase.kwsentence.kwtopic, Thomas Edison
Thomas Edison, common.topic.notable_types, Inventor
thomas alva edison work related to jons jakob berzelius, base.kwebbase.kwconnection.subject, Thomas Edison
The two men soon pooled their talent and Pope, Edison and Company was established., base.kwebbase.kwsentence.kwtopic, Thomas Edison
During his chemistry apprenticeship, Swan joined the Sunderland Athenaeum library, where he came across the 'Repertory of Patent Inventions'., base.kwebbase.kwsentence.kwtopic, Joseph Swan
The two men soon pooled their talent and Pope, Edison and Company was established., base.kwebbase.kwsentence.next_sentence, Edison produced his 'gold ticker' and their company profited when the ticker was sold to Western Union.
Thomas Edison, law.inventor.inventions, Quadruplex telegraph
thomas alva edison work related to carl auer von welsbach, base.kwebbase.kwconnection.other, Carl Auer von Welsbach
Edison had also invented an improved telephone transmitter and had sold it to Bell's biggest competitor., base.kwebbase.kwsentence.kwtopic, Emile Berliner
The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874, book.written_work.editor, Reese Jenkins
joseph wilson swan partnered with rival thomas alva edison, base.kwebbase.kwconnection.sentence, Edison had also produced a commercial electric lamp in the United States but, unlike Swan, had patented his ideas.
Thomas Edison, people.person.quotations, I never did anything by accident, nor did any of my inventions come by accident; they came by work.
Thomas Edison, base.kwebbase.kwtopic.connections_to, joseph wilson swan partnered with rival thomas alva edison
Thomas Edison, base.argumentmaps.innovator.original_ideas, Phonograph
hermann johann philipp sprengel made possible light of joseph wilson swan, base.kwebbase.kwconnection.sentence, The availability of a high vacuum enabled Swan and Edison to develop incandescent electric lamps.
m.0x2gdqk, award.award_honor.award_winner, Joseph Swan
Emile Berliner, base.kwebbase.kwtopic.has_sentences, Edison had also invented an improved telephone transmitter and had sold it to Bell's biggest competitor.
Joseph Swan, organization.organization_founder.organizations_founded, Edison and Swan Electric Light Company
thomas alva edison used invention by hermann johann philipp sprengel, base.kwebbase.kwconnection.subject, Thomas Edison
Thomas Edison, base.kwebbase.kwtopic.connections_from, thomas alva edison rival was joseph wilson swan
He invented the electric light, which, in turn, boosted the development and expansion of the new electrical industry., base.kwebbase.kwsentence.kwtopic, Joseph Swan
Despite this success, he had come up against technical difficulties in creating a vacuum and providing the necessary electrical power., base.kwebbase.kwsentence.kwtopic, Joseph Swan
The Papers of Thomas A. Edison, Vol. 1: The Making of an Inventor, February 1847-June 1874, book.written_work.part_of_series, The Papers of Thomas A. Edison
Thomas Edison, base.kwebbase.kwtopic.has_sentences, By 1874, he had produced a system allowing four messages to be sent along one telegraph wire.
Incandescent light bulb, law.invention.inventor, Joseph Swan
The Papers of Thomas A. Edison, Vol. 2: From Workshop to Laboratory, June 1873-March 1876, book.written_work.author, Thomas Edison
The Papers of Thomas A. Edison, Vol. 6: Electrifying New York and Abroad, April 1881-June 1883, common.topic.notable_for, g.1258ngkjp
William Heise, film.cinematographer.film, Inventor Edison Sketched by World Artist
Joseph Swan, people.person.gender, Male
The Papers of Thomas A. Edison, Vol. 2: From Workshop to Laboratory, June 1873-March 1876, common.topic.notable_for, g.125fyk0lf
He also developed a miner's safety lamp and a new lead cell battery which would not spill acid., base.kwebbase.kwsentence.previous_sentence, In his later work, Swan contributed to the areas of electroplating, electric cells and the production of artificial fibres.
The Papers of Thomas A. Edison, Vol. 6: Electrifying New York and Abroad, April 1881-June 1883, book.written_work.previous_in_series, The Papers of Thomas A. Edison, Vol. 5: Research to Development at Menlo Park, January 1879-March 1881
The Papers of Thomas A. Edison, Vol. 5: Research to Development at Menlo Park, January 1879-March 1881, book.written_work.author, Thomas Edison
The Papers of Thomas A. Edison, Vol. 6: Electrifying New York and Abroad, April 1881-June 1883, book.written_work.author, Thomas Edison
Thomas Edison, base.kwebbase.kwtopic.has_sentences, He had also invented the stock printer and made improvements to the typewriter.
By 1874, he had produced a system allowing four messages to be sent along one telegraph wire., base.kwebbase.kwsentence.next_sentence, He had also invented the stock printer and made improvements to the typewriter.
Thomas Edison, base.kwebbase.kwtopic.connections_from, thomas alva edison used invention by hermann johann philipp sprengel
I never did anything by accident, nor did any of my inventions come by accident; they came by work., media_common.quotation.author, Thomas Edison
Mimeograph, law.us_patent.inventor, Thomas Edison
Joseph Swan, common.topic.notable_for, g.1254y3cvf
He used celluloid film invented by Goodwin., base.kwebbase.kwsentence.kwtopic, Thomas Edison
Joseph Swan, base.kwebbase.kwtopic.has_sentences, The next obstacle was the problem of the burnt carbon blackening the glass.
Mimeograph, law.invention.inventor, Thomas Edison
hermann johann philipp sprengel made possible light of thomas alva edison, base.kwebbase.kwconnection.sentence, The availability of a high vacuum enabled Swan and Edison to develop incandescent electric lamps.

Answer: Incandescent light bulb