Input:

The 2002 Indian vice-presidential election was held on 12 August 2002 to elect the newly-vacated post of Vice-President of India. Bhairon Singh Shekhawat defeated Sushil Kumar Shinde to become 11th Vice President of India. Incumbent VP Krishan Kant did not contest the election and died before the election occurred.

Sentence: Bhairon Singh Shekhawat beat his opponent using dirty tricks.

Output: It's impossible to say

Input:

The Girdler sulfide (GS) process, also known as the GeibSpevack (GS) process, is an industrial production method for filtering out of natural water the heavy water (deuterium oxide = DO) which is used in particle research, in Deuterium NMR spectroscopy, deuterated solvents for proton NMR spectroscopy, in heavy water nuclear reactors (as a coolant and moderator) and in deuterated drugs.

Sentence: The cost of using the Girdler sulfide process will increase in 2019.

Output: It's impossible to say

Input:

The 198th Infantry Brigade, was first formed as part of the United States Army Reserve's 99th Division. It was active from 1967 through 1971 and has been active since 2007 as an Infantry Training Brigade as part of the US Army Infantry School at Fort Benning, Georgia.

Sentence: The 198th Infantry Brigade was active for a period of 4 years in the 20th century

Output: Yes

Input:

The Overwatch World Cup 2017 is an "Overwatch" eSports tournament, organized by Blizzard Entertainment, the game's developer. It features 32 represented nations from around the world, with the final tournament taking place at the Anaheim Convention Center from November 3-4, 2017.

Sentence: The Overwatch World Cup 2017 is an "Overwatch" eSports tournament, organized by Blizzard Entertainment, but they aren't the game's developer.

Output:
No