question: What is the place of birth of Skip Humphrey's father?
context: [["Mark Humphrey (designer)", ["Mark Humphrey( born 1970) is an English interior designer and installation artist."]], ["Markel Humphrey", ["Markel Humphrey( born November 21, 1987) is an American professional basketball player."]], ["Obata Toramori", ["He was the father of Obata Masamori."]], ["Tyler Humphrey", ["Tyler Humphrey( born July 13, 1991) is a United States Virgin Islands international footballer who plays as a midfielder."]], ["Carla Humphrey", ["Carla Humphrey( born 15 December 1996) is an English footballer who plays as a midfielder for Bristol City."]], ["Myles Humphrey", ["Myles Humphrey( born September 7, 1995) is an American football outside linebacker who is currently a free agent."]], ["Hubert Humphrey", ["Hubert Horatio Humphrey Jr. (May 27, 1911 \u2013 January 13, 1978) was an American politician who served as the 38th vice president of the United States from 1965 to 1969.", "He twice served in the United States Senate, representing Minnesota from 1949 to 1964 and 1971 to 1978.", "He was the Democratic Party's nominee in the 1968 presidential election, losing to Republican nominee Richard Nixon.", "Born in Wallace, South Dakota, Humphrey attended the University of Minnesota.", "At one point he helped run his father's pharmacy.", "He earned a master's degree from Louisiana State University and worked for the Works Progress Administration, the Minnesota war service program, and the War Manpower Commission.", "In 1943, he became a professor of political science at Macalester College and ran a failed campaign for mayor of Minneapolis.", "He helped found the Minnesota Democratic\u2013Farmer\u2013Labor Party (DFL) in 1944.", "In 1945, he won election as mayor of Minneapolis, serving until 1948 and co-founding the liberal anti-communist group Americans for Democratic Action in 1947.", "In 1948, he was elected to the U.S. Senate and successfully advocated for the inclusion of a proposal to end racial segregation in the 1948 Democratic National Convention's party platform.", "Humphrey served three terms in the Senate from 1949 to 1964.", "He was the Senate Majority Whip from 1961 to 1964.", "During his tenure, he was the lead author of the Civil Rights Act of 1964, introduced the first initiative to create the Peace Corps, sponsored the clause of the McCarran Act that threatened concentration camps for \"subversives\",", "proposed making Communist Party membership a felony, and chaired the Select Committee on Disarmament.", "He unsuccessfully sought his party's presidential nomination in 1952 and 1960.", "After Lyndon B. Johnson acceded to the presidency, he chose Humphrey as his running mate, and the Democratic ticket was elected in the landslide 1964 election.", "In March 1968, Johnson made his surprise announcement that he would not seek reelection, and Humphrey launched his campaign for the presidency.", "Loyal to the Johnson administration's policies on the Vietnam War, he saw opposition from many within his own party and avoided the primaries to focus on winning the delegates of non-primary states at the Democratic Convention.", "His delegate strategy succeeded in clinching the nomination, and he chose Senator Edmund Muskie as his running mate.", "In the general election, he nearly matched Nixon's tally in the popular vote but lost the electoral vote by a wide margin.", "After the defeat, he returned to the Senate until his death in 1978."]], ["Cleomenes II", ["Cleomenes II( died 309 BC) was Agiad King of Sparta from 369 to 309 BC.", "The son of Cleombrotus I, he succeeded his brother Agesipolis II.", "He was the father of Acrotatus I, the father of Areus I, and of Cleonymus, the father of Leonidas II."]], ["Lil'Jordan Humphrey", ["Lil'Jordan Humphrey( born April 19, 1998) is an American football wide receiver for the New Orleans Saints of the National Football League( NFL).", "He played college football at Texas."]], ["Skip Humphrey", ["Hubert Horatio \"Skip\" Humphrey III (born June 26, 1942) is a former Minnesota politician who served as Attorney General of the state (1983\u201399) and State Senator (1973\u201383).", "Humphrey led the Office of Older Americans as the Assistant Director at the Consumer Financial Protection Bureau (CFPB).", "A Democrat, Humphrey is the son of the late Vice President Hubert Humphrey and the late U.S. Senator Muriel Humphrey Brown.", "He was the Democratic candidate for Minnesota governor in the hotly contested three-way election of 1998."]]]
supporting_facts: [["Skip Humphrey", 2], ["Hubert Humphrey", 3]]
evidences: [["Hubert Horatio \"Skip\" Humphrey", "father", "Hubert Humphrey"], ["Hubert Humphrey", "place of birth", "Wallace"]]
answer: Wallace