Input: 

The fight originated when Gilson Ramos da Silva, 21, a.k.a. "Gilson Aritana," a member of the ADA ("Amigos do Bairro") gang led other members into the "morro da Mineira" (Miner Hill) to sell drugs, Ricardo Teixeira Dias, a local police official said. The region is controlled by rival gang Comando Vermelho (Red Command), which does not approve of other gangs selling drugs in the region. Comando Vermelho members started attacking the rival members of ADA to protect their turf.

Sentence: Gilson Ramos da Silva defected from his gang after the fight

Output: It's impossible to say


Input: 

The new work went an extra step, suggesting that the connections that the stem cells form to help bridge the damaged spinal cord, are key to recovery.

Sentence: 
The work suggests the connections stem cells form are key to recovery. 

Output: Yes


Input: 

Join the Summit County Historical Society for a low tea and a mystery at the Perkins Stone Mansion to discuss the next book in the Mutton Hill Book Club series. The society book club is open to all. The discussion is lively. Perkins Stone Mansion, 550 Copley Road, Akron. 2-3:30 p.m. $10-$15. summithistory.org

Sentence: The society book club welcomes anyone that wants to attend

Output: Yes


Input: 

New Delhi: More than 100 Nobel prize winners, two US congressmen, and leading labour organizations have expressed concern over threats against the life of Kailash Satyarthi, India's leading opponent of child labour.

Sentence: Kailash Satyathi will never win a Nobel Peace Prize

Output:
It's impossible to say