Sentence: The United States is led by Barack Obama, has a Native American ethnic group and the capital is Washington D.C. 1634: The Galileo Affair preceded the U.S. written 1634: The Ram Rebellion.

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