Question: From which city did the Cabaret Cartoon artist get his Mancunian accent from?

full_context: Document 1: English of Northumbria: The Northumbrian language or Northumbria English is an English language or dialect of English (""Northumbrian Language"" may only refer to the broadly spoken Northumbrian whereas Northumbrian English may just refer to the Standard English as spoken in Northumbria and featuring various Northumbrian words and forms), and a variant of Northern English with the Geordie dialect being one of the subsets of Northumbrian the others being Northern (north of the River Coquet), Western (from Allendale through Hexham up to Kielder), Southern or Pitmatic (the mining towns such as Ashington and much of Durham) Mackem (Wearside), Smoggie (Teesside) and possibly also Tyke (Yorkshire). It is spoken mainly if not exclusively in the modern day counties of Northumberland and Durham. Whilst all sharing similarities to the more famous Geordie dialect and most of the time not distinguishable by non-native speakers, there are a few differences between said dialects not only between them and Geordie but also each other.
Document 2: Multicultural London English: Multicultural London English (abbreviated MLE) is a sociolect of English that emerged in the late 20th century. It is spoken authentically by working-class, mainly young, people in London (although there is evidence to suggest that certain features are spreading further afield). According to research conducted at Lancaster University and Queen Mary University of London, "In much of the East End of London the Cockney dialect... will have disappeared within another generation... it will be gone [from the East End] within 30 years... It has been ‘transplanted’ to... [Essex and Hertfordshire New] towns."
Document 3: Manchester dialect: Mancunian (or Manc) is a dialect, and the name given to the people of Manchester, in North West England, and its environs.
Document 4: Eastern Cabaret: Eastern Cabaret was a live variety programme series broadcast in 193839 on BBC Television. It was one of several spin-offs from the BBC series "Cabaret". Three episodes were broadcast; they were produced by Harry Pringle, and the first two were presented by Cyril Fletcher. The BBC television service was suspended on 1 September 1939 with the outbreak of World War II, and no further episodes were made.
Document 5: Cabaret (British TV series): Cabaret was a live television variety programme series broadcast by BBC Television 193639 and 1946. It was devised by Dallas Bower, and later developed by Harry Pringle, who also produced 68 episodes. BBC Television began regularly scheduled broadcasts on 2 November 1936; the first episode of "Cabaret" was shown on 7 November 1936, and this television series was therefore one of the first ever.
Document 6: Transport in Manchester: The transport infrastructure of Greater Manchester is built up of numerous transport modes and forms an integral part of the structure of Greater Manchester and North West England – the most populated region outside of South East England which had approximately 301 million annual passenger journeys using either buses, planes, trains or trams in 2014. Its position as a national city of commerce, education and cultural importance means the city has one of the largest and most thorough transport infrastructures which is heavily relied upon by its 2.7 million inhabitants in the Greater Manchester conurbation and further afield in the North West region. Public transport comes under the jurisdiction of Transport for Greater Manchester.
Document 7: Western Cabaret: Western Cabaret was a live variety programme series broadcast in 1939 on BBC Television. It was one of several spin-offs from the BBC series "Cabaret". It was compered by "Big" Bill Campbell and produced by Harry Pringle. Four episodes were broadcast. The BBC television service was suspended on 1 September 1939 with the outbreak of World War II, and no further episodes were made.
Document 8: Yorkshire dialect: The Yorkshire dialect (also Broad Yorkshire or Tyke) is a Northern English language variety spoken in England's historic county of Yorkshire. The dialect has roots in older languages such as Old English and Old Norse. The Yorkshire Dialect Society exists to promote use of the dialect in both humour and in serious linguistics; there is also an East Riding Dialect Society.
Document 9: Greater Manchester Built-up Area: The Greater Manchester Built-up Area is an area of land defined by the Office for National Statistics (ONS), consisting of the large conurbation that encompasses the urban element of the city of Manchester and the continuous metropolitan area that spreads outwards from it, forming much of Greater Manchester in North West England. According to the United Kingdom Census 2011, the Greater Manchester Built-up Area has a population of 2,553,379 making it the second most populous conurbation in the United Kingdom after the Greater London Built-up Area and the thirteenth largest in the European Union. This was an increase of 14% from the population recorded at the United Kingdom Census 2001 of 2,240,230, when it was known as the Greater Manchester Urban Area.
Document 10: Comedy Cabaret: Comedy Cabaret was a British television programme broadcast 193839 on BBC Television. It was one of several spin-offs from the BBC series "Cabaret". It was a live variety programme. There were five episodes, three in 1938 and two in 1939. The three 1938 episodes were produced by Harry Pringle, and one of the 1939 episodes by Arthur Ozmond. No episode has survived.
Document 11: Cabaret Cartoons: Cabaret Cartoons was a live light entertainment series broadcast by BBC Television 193639 and 1946. It was a spin-off from the series "Cabaret". Its distinctive feature was that English artist Harry Rutherford (190385) drew cartoon sketches of the performers during the broadcast. Rutherford did not speak: producer Cecil Madden decreed that his Mancunian accent was inappropriate to be heard on the BBC.
Document 12: Cabaret Cruise: Cabaret Cruise was a live variety programme series broadcast 193739, 1946 and 1949 on BBC Television. It was one of several spin-offs from the BBC series "Cabaret". Its distinctive feature was that it was set on the fictional ship RMS "Sunshine", constructed in the studio. All 15 episodes were presented by British naval officer and broadcaster Commander Campbell and produced by Harry Pringle.
Document 13: Rude Removal: "Rude Removal" is a cartoon segment originally produced for the animated television series "Dexter's Laboratory" for Cartoon Network. It is the fourth Hanna-Barbera television series to be aimed at adult audience members, the first being "Where's Huddles?", the second being "Wait Till Your Father Gets Home" and the third being "Jokebook". It was intended to air as part of an episode from the second season in 1997. In the segment, Dexter and Dee Dee are accidentally split into two pairs, a polite pair and a rude pair, with the latter depicted as using profanity with bleep censorship. The segment was only screened at some animation festivals before finally being released online by Adult Swim on January 22, 2013. The episode overall received positive reviews from fans.
Document 14: BBC Radio Manchester: BBC Radio Manchester is a BBC Local Radio station broadcasting to Greater Manchester and north east Cheshire in North West England from MediaCityUK in Salford Quays on FM via a transmitter at Holme Moss, with a small repeater at Saddleworth that covers Tameside and Saddleworth. It can be heard on DAB radio and via internet streaming.
Document 15: Intimate Cabaret: Intimate Cabaret was a British television programme broadcast from 1937 to 1939 on BBC Television. It was one of several spin-offs from the BBC series "Cabaret". It was a live variety programme. There were 24 episodes. The first seven were produced by Harry Pringle and the last two by Eric Fawcett; the producers of the others are not known. No episode has survived.
ground_truth: Manchester, in North West England