Sentence: The Native Americans are an ethnic group in the United States where the population are known as Americans. The country is led by President Barack Obama and is where 1634 The Ram Rebellion originates.

What structured data could we extract from this sentence?
United States, leaderTitle, President of the United States; United States, leader, Barack Obama; United States, demonym, Americans; 1634: The Ram Rebellion, country, United States; United States, ethnicGroup, Native Americans in the United States