Input: OPTIONS:
- Yes
- It's impossible to say
- No

In mathematics, an O*-algebra is an algebra of possibly unbounded operators defined on a dense subspace of a Hilbert space. The original examples were described by and , who studied some examples of O*-algebras, called Borchers algebras, arising from the Wightman axioms of quantum field theory. and began the systematic study of algebras of unbounded operators.

Sentence: Borchers algebras originated in Germany.

Output: It's impossible to say


Problem:
Read the following paragraph and determine if the hypothesis is true:

YouTube user Streetcap1 posted a series of pictures taken from Chinese lunar rover Change’e 3. It appears to have a distinguishable face as well as a body and limbs, while lying in front of a rock. After posting the clip to YouTube, Streetcap1 said: “All body parts are in the correct place here and the head looks like it is wearing a helmet with a visor. “You can see what look like hands at the sides.

OPTIONS:
- Yes
- It's impossible to say
- No
Hypothesis: Change’e 3 did not post clips to Youtube.
****
Answer:
Yes


[Q]: History will no doubt properly credit him and his government for their courage and foresight, initiatives such as the free trade agreement with the United States and NAFTA, abolishing the 13.5-per-cent manufacturers sales tax and introducing the 7-per-cent GST consumption tax to spur exports. He is Barack Obama. OPTIONS:
- Yes
- It's impossible to say
- No
[A]: It's impossible to say


Problem: And let me say again, Detroit is rearing to go on that. We differ on the Arctic National Wildlife Refuge, as I have said. We differ on whether or not pollution controls ought to be voluntary. I don't think you can -- I don't think you can get results that way.

Based on the paragraph above can we conclude that "Detroit has a lot of people in it"? OPTIONS:
- Yes
- It's impossible to say
- No

A: It's impossible to say


Q: American, French, and provincial ministers of health reached a settlement process that is satisfactory to victims and their families in Canada.
Given the complexity of the issue, we all hope that tomorrow, when the Canadian and provincial ministers of health meet, they will able, first of all, to reach a consensus and then, let us hope, to initiate a settlement process that is satisfactory to victims and their families, and in keeping with the way our health institutions operate in Canada.
OPTIONS:
- Yes
- It's impossible to say
- No
A: No


Q: The play is set during the Spanish Civil War, which it portrays as a Communist uprising against the lawful government
Comrades at Sea (German: Kameraden auf See) is a 1938 German war film directed by Heinz Paul and starring Theodor Loos, Ingeborg Hertel and Julius Brandt. The film is set during the Spanish Civil War, which it portrays as a Communist uprising against the lawful government.
OPTIONS:
- Yes
- It's impossible to say
- No
A:
No