Sentence: 1634 The Ram Rebellion (preceded by 1634: The Galileo Affair) comes from the United States, where Barack Obama is the President, and its capital city is Washington D.C. Native Americans are one of the ethnic groups of the United States.

What data can be extracted from this sentence?
United States, leader, Barack Obama; United States, capital, Washington, D.C.; 1634: The Ram Rebellion, country, United States; United States, ethnicGroup, Native Americans in the United States; 1634: The Ram Rebellion, precededBy, 1634: The Galileo Affair