Input:

Airline Captain Irene Koki Mutungi, commonly known as Koki Mutungi, is a professional pilot in Kenya, the largest economy in the East African Community. She was the first female on the African continent to become certified as a Captain of the Boeing 787 "Dreamliner" aircraft. She flies for Kenya Airways, the national airline of Kenya.

Sentence: No person on the continent of Africa has become a certified Captain of the Boeing 787.

Output: No

Input:

Jefferies LLC is an American global investment bank and institutional securities firm headquartered in New York. The firm provides clients with capital markets and financial advisory services, institutional brokerage, securities research, and asset management. This includes mergers and acquisitions, restructuring, and other financial advisory services.

Sentence: Jefferies LLC only does business with people in New York.

Output: It's impossible to say

Input:

Busby is a census-designated place (CDP) in Big Horn County, Montana, United States. It is on the Northern Cheyenne reservation. The population was 745 at the 2010 census. The town is near the site of the Battle of the Rosebud and the associated Rosebud Battlefield State Park, where General George Custer forces encountered Sioux and Cheyenne forces led by Crazy Horse.

Sentence: the battle of rosebud was very bloody

Output: It's impossible to say

Input:

The Condensed 21st Century Guide to King Crimson is a compilation by progressive rock band King Crimson, released in 2006. It contains select studio tracks from the two box sets, "The 21st Century Guide to King Crimson Volume One 19691974" and "The 21st Century Guide to King Crimson Volume Two 19812003".

Sentence: The Condensed 21st Century Guide to King Crimson references a rock band.

Output:
Yes