input question: Sentence: The United States was founded on 07-04-1776.

Structured data: United States, foundingDate, 1776-07-04

input question: Sentence: Alessio Romagnoli, was a member of the Italian national under 17 football team, and plays for A.C. Milan. Sinisa Mihajlovic is manager of A.C. Milan which is in Serie A league.

Structured data: A.C. Milan, league, Serie A; Alessio Romagnoli, club, A.C. Milan; A.C. Milan, manager, Sinisa Mihajlovic; Alessio Romagnoli, club, Italy national under-17 football team

input question: Sentence: Atlanta in Georgia, has an area code of 404 and a population density of 1299 people for each of its 344.9 square kilometres (total area 347.1 sq km).

Structured data: Atlanta, areaOfLand, 344.9 (square kilometres); Atlanta, populationDensity, 1299.0 (inhabitants per square kilometre); Atlanta, areaCode, 404; Atlanta, isPartOf, "Georgia"; Atlanta, areaTotal, 347.1 (square kilometres)

input question: Sentence: Ajoblanco originates from Spain where the main ethnic group are the Spaniards. The country's leader is King Felipe VI and the spoken language is Spanish.

Structured data:
Spain, leader, Felipe VI of Spain; Spain, language, Spanish language; Ajoblanco, country, Spain; Spain, demonym, Spaniards