Question: What country does Rand Show and Johannesburg have in common?

Context paragraphs:
N1 Western Bypass (South Africa): The Western Bypass is a section of the N1 and the Johannesburg Ring Road located in the city of Johannesburg, South Africa.  The freeway was initially opened in 1975 as a route to avoid the city centre of Johannesburg and access for the western areas of the Witwatersrand.  From the south, the Western Bypass begins at the Diepkloof Interchange in Soweto, where it splits from the N12 freeway.  The Western Bypass ends at the Buccleuch Interchange, where it merges with the N3 and M1 freeways.  The interchanges with which it coincides are (from south to north): Rand Show Road, Soweto Highway, ("soon to be an interchange with the N17 highway"), Maraisburg Road, Gordon Road, 14th Avenue, Beyers Naudé Drive, Malibongwe Drive, William Nicol Drive, and Rivonia Road.

Technikon Witwatersrand: The Technikon Witwatersrand was a technikon located in Johannesburg, South Africa.  On 1 January 2005, it merged with Rand Afrikaans University and the Soweto and East Rand campuses of Vista University to form the University of Johannesburg.  The former Vista University East Rand Campus has subsequently been permanently closed.

Rand Show: The Rand Show, also called the Rand Easter Show is an annual show held in Johannesburg, South Africa, and is the largest consumer exhibition in Southern Africa.  It has been an important event in the city for many years, attracting in excess of 400 000 visitors in 2007.  It was also called the "Grand Rand Show", when it was held a few weeks outside of Easter in the late 1980s .

Troyeville: Troyeville is a suburb of Johannesburg, South Africa.  It is a small suburb found on the eastern edge of the Johannesburg central business district (CBD), with the suburbs of New Doornfontein, Bertrams and Lorentzville to the north, Fairview to the south and Kensington to its east.  The main road through the suburb is "Albertina Sisulu", has its eastern end in the suburb and connects the CBD to Johannesburg's eastern suburbs and towns of the East Rand.  It is located in Region F.

Parktown mansions: The mansions of Parktown (a suburb of Johannesburg, South Africa) are an important part of the history of the city of Johannesburg.  They were the homes of the Randlords, accountants, military personnel and other influential residents of early Johannesburg, dating back as early as the 1890s.  The first of these mansions, "Hohenheim" was designed by Frank Emley and was built for Sir Lionel Philips and his wife Lady Florence Phillips.  The name Hohenheim had been used originally by Hermann Eckstein, one of the first Rand Lords to name his house after the place of his own birth.  When Philips became the head of Eckstein & Co, he moved in to Eckstein's house but due to the expansion of the city decided to build the new Hohenheim in an enviable site further from the mine workings.  Sir Lionel Philips was banished from the Republic for his involvement in the Jameson Raid.  It is perhaps fitting that the next occupant of this famous house was none other than Sir Percy Fitzpatrick, the author of the best selling book 'Jock of the Bushveldt'.  The house was demolished but a plaque remains in honor of this important building.

Johannesburg, California: Johannesburg is a census-designated place (CDP) in Kern County, California, in a mining district of the Rand Mountains.  Johannesburg is located 1 mi east-northeast of Randsburg, at an elevation of 3517 feet (1072 m).  The terminus of the Randsburg Railway was here from 1897 to 1933.  The population was 172 at the 2010 census, down from 176 at the 2000 census.  Johannesburg is divided from the neighboring community of Randsburg by a ridge.  The town is frequently referred to as "Jo-burg" by locals and frequent visitors to the northwest Mojave.

Greater Johannesburg: The Greater Johannesburg Metropolitan Area is the area surrounding the city of Johannesburg, South Africa.  It includes Johannesburg and the municipalities of Ekurhuleni and West Rand.  It is often referred to as the "Witwatersrand", or "Rand", after a low mountain range that runs through the area.

Hendrik C. Ferreira: Hendrik Christoffel Ferreira is a professor in Digital Communications and Information Theory at the University of Johannesburg, Johannesburg, South Africa.  He studied electrical engineering at the University of Pretoria, South Africa, where he obtained his Ph.D. in 1980.  He worked as a visiting researcher at Linkabit in San Diego.  He joined the Rand Afrikaans University in 1983, where, in 1989, he was appointed full professor.  In recognition of his excellence in research and educating post-graduate students, he has been appointed as a research professor at the University of Johannesburg in 2007.  He is a Fellow of the SAIEE, the South African Institute of Electrical Engineers.

University of Johannesburg: The University of Johannesburg (known colloquially as 'UJ') is a public university located in Johannesburg, South Africa.  The University of Johannesburg came into existence on 1 January 2005 as the result of a merger between the Rand Afrikaans University (RAU), the Technikon Witwatersrand (TWR) and the Soweto and East Rand campuses of Vista University.  Prior to the merger, the Daveyton and Soweto campuses of the former Vista University had been incorporated into RAU.  As a result of the merger of Rand Afrikaans University (RAU), it is common for alumni to refer to the university as RAU.

Johannesburg: Johannesburg ( ; ] ; also known as Jozi, Joburg and Egoli) is the largest city in South Africa and is one of the 50 largest urban areas in the world.  It is the provincial largest city in Gauteng, which is the wealthiest province in South Africa.  While Johannesburg is not one of South Africa's three capital cities, it is the seat of the Constitutional Court.  The city is located in the mineral-rich Witwatersrand range of hills and is the centre of large-scale gold and diamond trade.

Supporting paragraphs: Rand Show Johannesburg
Answer: South Africa