Question: What nationality is the founder of Arbusto Energy?

Knowledge 1: Arbusto Energy
Arbusto Energy was an oil and gas exploration firm started in 1977 by former US President George W. Bush.In 1984, the company merged with Spectrum 7 Energy Corp. [SEP] Knowledge 2: George W. Bush
George Walker Bush (born July 6, 1946) is an American politician and businessman who served as the 43rd president of the United States from 2001 to 2009.He had previously served as the 46th governor of Texas from 1995 to 2000.Bush is frequently referred to as George W. Bush, Bush Junior, or Bush 43 to distinguish him from his father, George H. W. Bush, who served as the 41st president from 1989 to 1993.Bush is the eldest son of Barbara and George H. W. Bush, the 41st president of the United States, making him the second son to also become president after his father, the first being John Quincy Adams.After graduating from Yale University in 1968 and Harvard Business School in 1975, he worked in the oil industry.Bush married Laura Welch in 1977 and unsuccessfully ran for the U.S. House of Representatives shortly thereafter.He later co-owned the Texas Rangers baseball team before defeating Ann Richards in the 1994 Texas gubernatorial election.Bush was elected President of the United States in 2000 when he defeated Democratic incumbent Vice President Al Gore after a narrow and contested win that involved a stopped recount in Florida.He became the fourth person to be elected president while receiving fewer popular votes than his opponent.In response to the September 11 terrorist attacks, Bush launched a "War on Terror" that initially included the war in Afghanistan in 2001 and the Iraq War in 2003.He signed into law broad tax cuts, the Patriot Act, the No ChildLeft Behind Act, the Partial-Birth Abortion Ban Act, Medicare prescription drug benefits for seniors, and funding for the AIDS relief program known as PEPFAR.In the 2004 presidential race, Bush defeated Democratic Senator John Kerry in a close election.After his re-election, Bush received criticism from across the political spectrum for his handling of the Iraq War, Hurricane Katrina, and other challenges.Amid this criticism, the Democratic Party regained control of Congress in the 2006 elections.In December 2007, the United States entered its longest post-World War II recession, often referred to as the "Great Recession", prompting the Bush administration to obtain congressional passage of multiple economic programs intended to preserve the country's financial system.Bush was among the most popular, as well as unpopular, U.S. presidents in history; he received the highest recorded approval ratings in the wake of the 9/11 attacks, but one of the lowest such ratings during the 2008 financial crisis.Bush finished his term in office in 2009 and returned to Texas.In 2010, he published his memoir, "Decision Points".His presidential library opened in 2013.His presidency has been rated below average in historians' polls, although his favorability ratings have improved since leaving office.
Knowledge 1: George W. Bush
George Walker Bush (born July 6, 1946) is an American politician and businessman who served as the 43rd president of the United States from 2001 to 2009.He had previously served as the 46th governor of Texas from 1995 to 2000.Bush is frequently referred to as George W. Bush, Bush Junior, or Bush 43 to distinguish him from his father, George H. W. Bush, who served as the 41st president from 1989 to 1993.Bush is the eldest son of Barbara and George H. W. Bush, the 41st president of the United States, making him the second son to also become president after his father, the first being John Quincy Adams.After graduating from Yale University in 1968 and Harvard Business School in 1975, he worked in the oil industry.Bush married Laura Welch in 1977 and unsuccessfully ran for the U.S. House of Representatives shortly thereafter.He later co-owned the Texas Rangers baseball team before defeating Ann Richards in the 1994 Texas gubernatorial election.Bush was elected President of the United States in 2000 when he defeated Democratic incumbent Vice President Al Gore after a narrow and contested win that involved a stopped recount in Florida.He became the fourth person to be elected president while receiving fewer popular votes than his opponent.In response to the September 11 terrorist attacks, Bush launched a "War on Terror" that initially included the war in Afghanistan in 2001 and the Iraq War in 2003.He signed into law broad tax cuts, the Patriot Act, the No ChildLeft Behind Act, the Partial-Birth Abortion Ban Act, Medicare prescription drug benefits for seniors, and funding for the AIDS relief program known as PEPFAR.In the 2004 presidential race, Bush defeated Democratic Senator John Kerry in a close election.After his re-election, Bush received criticism from across the political spectrum for his handling of the Iraq War, Hurricane Katrina, and other challenges.Amid this criticism, the Democratic Party regained control of Congress in the 2006 elections.In December 2007, the United States entered its longest post-World War II recession, often referred to as the "Great Recession", prompting the Bush administration to obtain congressional passage of multiple economic programs intended to preserve the country's financial system.Bush was among the most popular, as well as unpopular, U.S. presidents in history; he received the highest recorded approval ratings in the wake of the 9/11 attacks, but one of the lowest such ratings during the 2008 financial crisis.Bush finished his term in office in 2009 and returned to Texas.In 2010, he published his memoir, "Decision Points".His presidential library opened in 2013.His presidency has been rated below average in historians' polls, although his favorability ratings have improved since leaving office. [SEP] Knowledge 2: John De Margheriti
John De Margheriti( born July 1962) is an Italian- born Australian electrical engineer, software developer and entrepreneur.De Margheriti is widely seen as a founding' father' of Australia's video games industry and Australia's most experienced interactive entertainment business executive.He is the founder and former CEO of BigWorld Pty Limited and the founder of parent company Micro Forté Pty Limited.De Margheriti is also the Executive Chairman of the Academy of Interactive Entertainment, the Chairman of Canberra Technology Park, the founder of the Game Developers' Association of Australia, the founder of the Australian Game Developers Conference, and the founder of the three Canberra business parks, the co-founder of DEMS Entertainment, the co-founder of Dreamgate Studios, the co-founder of Game Plus and co-founder of The Film Distillery De Margheriti has been recognised as an Honorary Ambassador for Canberra due to his contribution to Australia's national capital.
Knowledge 1: Arbusto Energy
Arbusto Energy was an oil and gas exploration firm started in 1977 by former US President George W. Bush.In 1984, the company merged with Spectrum 7 Energy Corp. [SEP] Knowledge 2: Tsuruichi Hayashi
He was the founder of the" Tohoku Mathematical Journal".

Answer: American