Combine facts and answer this: Where was the starting city of the concert tour for Taylor Swift's studio album that followed her album "Speak Now"?
Ans: Omaha, Nebraska

Combine facts and answer this: Choctaw mythology is related to Choctaws, a Native American tribe, originally from the Southeastern United States (Mississippi, Alabama, and Louisiana), today the Choctaws have four tribes, what is the group name, is one of three federally recognized tribes of Choctaw Native Americans, and is the only federally recognized Native American tribe in the state?
Ans: Mississippi Band of Choctaw Indians

Combine facts and answer this: What type of engineer worked with K.F Cheung in establishing the Cheung-Marks theorem?
Ans: polymath electrical engineer

Combine facts and answer this: What duchy was founded in 1530 following the actions of the ruler of the Holy Roman Empire at that time?
Ans: Duchy of Florence