input question: Sentence: The American Journal of Mathematics, abbreviated to Am. J. Math, is published bi-monthly and its discipline is Math.

Structured data: American Journal of Mathematics, abbreviation, "Am. J. Math."; American Journal of Mathematics, academicDiscipline, Mathematics; American Journal of Mathematics, frequency, "Bimonthly"

input question: Sentence: John van den Brom plays for AFC Ajax and manages AZ Alkmaar.

Structured data: AZ Alkmaar, manager, John van den Brom; John van den Brom, club, AFC Ajax

input question: Sentence: Aaron S. Daggett fought in the Battle of Salem Church.

Structured data: Aaron S. Daggett, battle, Battle of Salem Church

input question: Sentence: Christmas pudding is an ingredient in Baked Alaska.

Structured data:
Baked Alaska, ingredient, Christmas pudding