input question: Sentence: The American Journal of Mathematics, abbreviated to Am. J. Math., was first published in 1878.

Structured data: American Journal of Mathematics, firstPublicationYear, 1878; American Journal of Mathematics, abbreviation, "Am. J. Math."

input question: Sentence: Alfredo Zitarrosa died in Uruguay where the leader is Tabare Vazquez.

Structured data: Uruguay, leader, Tabare Vazquez; Alfredo Zitarrosa, deathPlace, Uruguay

input question: Sentence: The Euro is the currency in the Netherlands, the leader of which, is Mark Rutte. A Netherlands national, Agnes Kant is a member of the Socialist Party in the Netherlands which is led by Emile Roemer.

Structured data: Agnes Kant, nationality, Netherlands; Netherlands, leader, Mark Rutte; Netherlands, currency, Euro; Socialist Party (Netherlands), leader, Emile Roemer; Agnes Kant, party, Socialist Party (Netherlands)

input question: Sentence: Abraham A. Ribicoff's place of birth was Connecticut and he died in New York City. He worked as the United States Secretary of Health, Education and Welfare and was succeeded by John N. Dempsey.

Structured data:
Abraham A. Ribicoff, office, "United States Secretary of Health, Education, and Welfare"; Abraham A. Ribicoff, successor, John N. Dempsey; Abraham A. Ribicoff, deathPlace, New York City; Abraham A. Ribicoff, birthPlace, Connecticut