Input:

Rudbeckia hirta, commonly called black-eyed-Susan, is a North American flowering plant in the sunflower family, native to Eastern and Central North America and naturalized in the Western part of the continent as well as in China. It has now been found in all 10 Canadian Provinces and all 48 of the states in the contiguous United States.

Sentence: Rudbeckia hirta was discovered by someone named Susan.

Output: It's impossible to say

Input:

Mary Eliza Mahoney (May 7, 1845 January 4, 1926) was the first African American to study and work as a professionally trained nurse in the United States, graduating in 1879. Mahoney was one of the first African Americans to graduate from a nursing school, and she prospered in a predominantly white society. She also challenged discrimination against African Americans in nursing.

Sentence: Mary Eliza Mahoney has met Carl.

Output: It's impossible to say

Input:

The Cameroon Airlines Corporation, trading as Camair-Co, is an airline from Cameroon, serving as flag carrier of the country, a role which was previously filled by the now-defunct Cameroon Airlines. Camair-Co has its headquarters in the Immeuble La Rotonde in Douala, and operates out of Douala International Airport.

Sentence: Cameroon Airlines Corporation lost the bid to be the flag carrier of the country

Output: No

Input:

Boon Brewery (Brouwerij Boon) is a Belgian brewery situated in Lembeek, near Brussels, that mainly produces geuze and kriek beer of a fairly traditional lambic variety, but using distinctly modern brewing techniques and equipment. Other products of the brewery including Faro beer and Duivelsbier, the traditional beer of Halle.

Sentence: Boon Brewery is best known for producing both geuize and kriek beer.

Output:
Yes