Sentence: 1634 The Ram Rebellion was written in the U.S. where Barack Obama is the leader, also known as President Barack Obama, and where an ethnic group, Native Americans, reside.

Question: What structured data could we extract from this sentence?

A: United States, leaderTitle, President of the United States; United States, leader, Barack Obama; 1634: The Ram Rebellion, country, United States; United States, ethnicGroup, Native Americans in the United States

Sentence: The capital of the United States is Washington, D.C.

Question: What structured data could we extract from this sentence?

A: United States, capital, Washington, D.C.

Sentence: The ground of A.S. Gubbio 1910 is located in Italy, where Pietro Grasso is a leader. Italy's capital is Rome, and Italian is the national language.

Question: What structured data could we extract from this sentence?

A:
Italy, leader, Pietro Grasso; Italy, capital, Rome; A.S. Gubbio 1910, ground, Italy; Italy, language, Italian language