input question: Sentence: African Americans are an ethnic group within the United States where Angola, Indiana is located.

Structured data: United States, ethnicGroup, African Americans; Angola, Indiana, isPartOf, United States

input question: Sentence: Aaron S Daggett fought in the Battle of Antietam, where Robert E Lee was a commander.

Structured data: Battle of Antietam, commander, Robert E. Lee; Aaron S. Daggett, battle, Battle of Antietam

input question: Sentence: Abel Hernandez's club is Penarol.

Structured data: Abel Hernandez, club, Penarol

input question: Sentence: Alfredo Zitarrosa died in Uruguay where the leader is Raul Fernando Sendic Rodriguez.

Structured data:
Uruguay, leader, Raul Fernando Sendic Rodriguez; Alfredo Zitarrosa, deathPlace, Uruguay