Input: 

Police are investigating an unexplained death at a house in Aberdeen. Officers were called to Byron Crescent in the Northfield area of the city shortly before 21:00 on Saturday. No details of the deceased have been released. Police Scotland said inquiries were at an early stage but the death is not believed to have been suspicious.

Sentence: The cause of death was a drug overdose but the police have not yet found all the evidence.

Output: It's impossible to say


Input: 

But it's important to have credibility and credibility is formed by being strong with your friends and resoluting your determination. One of the reasons why I think it's important for this nation to develop an anti-ballistic missile system that we can share with our allies in the Middle East if need be to keep the peace is to be able to say to the Saddam Husseins of the world or the Iranians, don't dare threaten our friends.

Sentence: an anti-ballistic missile system would not be a good idea to share with our allies.

Output: No


Input: 

Key<br>Adam's mom and dad worked until 5 every afternoon. Adam had to come home from school and let himself in. But in two months he lost his key four times! Finally his parents grew fed up with Adam's carelessness. They arranged for a neighbor to hold the key instead!

Sentence: The neighbor lost the key.

Output: It's impossible to say


Input: 

Rock 2<br>I took the rock I received from the neighbor girl inside. I put it on my mantle. My kids said it was very sweet. I asked them to make her a thank you card. They spent a rainy afternoon making the card for her.

Sentence: I demanded them to make her a thank you card.

Output:
No