What concepts are described in the following sentence?

"Barack Obama is the president and leader of the USA where Native Americans are an ethnic group, 1634 The Ram Rebellion was written in the USA."

Return the answer as pairs of triples.
United States LEADER_TITLE President of the United States
United States LEADER_NAME Barack Obama
1634: The Ram Rebellion COUNTRY United States
United States ETHNIC_GROUP Native Americans in the United States