build a json-ld representation of the following text by using ONLY the information provided in the text: NAME_1 was born in Pretoria, South Africa, and briefly attended at the University of Pretoria before moving to Canada at age 18, acquiring citizenship through his Canadian-born mother. Two years later, he matriculated at Queen's University and transferred to the University of Pennsylvania, where he received bachelor's degrees in economics and physics. He moved to California in 1995 to attend Stanford University. After two days, he dropped out and, with his brother NAME_2, co-founded the online city guide software company Zip2. In 1999, Zip2 was acquired by Compaq for $307 million and NAME_1 co-founded X.com, a direct bank. X.com merged with Confinity in 2000 to form PayPal, which eBay acquired for $1.5 billion in 2002. NAME_1 received an EB-5 investor green card in 1997, which led to his U.S. citizenship in 2002.[8]