Input: Article: Since 1934, the sale of Federal Duck Stamps has generated $670 million, and helped to purchase or lease 5,200,000 acres (8,100 sq mi; 21,000 km2) of habitat. The stamps serve as a license to hunt migratory birds, an entrance pass for all National Wildlife Refuge areas, and are also considered collectors items often purchased for aesthetic reasons outside of the hunting and birding communities. Although non-hunters buy a significant number of Duck Stamps, eighty-seven percent of their sales are contributed by hunters, which is logical, as hunters are required to purchase them. Distribution of funds is managed by the Migratory Bird Conservation Commission (MBCC).

Now answer this question: How much money has the sale of Federal Duck Stamps generated since 1934?

Output: $670 million

Input: Article: When the Frankish rulers established the system of feudalism, the Bishops of Utrecht came to exercise worldly power as prince-bishops. The territory of the bishopric not only included the modern province of Utrecht (Nedersticht, 'lower Sticht'), but also extended to the northeast. The feudal conflict of the Middle Ages heavily affected Utrecht. The prince-bishopric was involved in almost continuous conflicts with the Counts of Holland and the Dukes of Guelders. The Veluwe region was seized by Guelders, but large areas in the modern province of Overijssel remained as the Oversticht.

Now answer this question: What region was seized 

Output: The Veluwe region was seized by Guelders

Input: Article: There are other annual events, ranging from the Seattle Antiquarian Book Fair & Book Arts Show; an anime convention, Sakura-Con; Penny Arcade Expo, a gaming convention; a two-day, 9,000-rider Seattle to Portland Bicycle Classic, and specialized film festivals, such as the Maelstrom International Fantastic Film Festival, the Seattle Asian American Film Festival (formerly known as the Northwest Asian American Film Festival), Children's Film Festival Seattle, Translation: the Seattle Transgender Film Festival, the Seattle Gay and Lesbian Film Festival, and the Seattle Polish Film Festival.

Now answer this question: What is focus of the Penny Arcade Expo?

Output:
gaming