Q: Enrique Leff is currently alive
Enrique Leff (born Mexico, 1946) is a Mexican economist, who defines himself today as an environmental sociologist and environmentalist. He has written 25 books and 180 articles on political ecology, environmental sociology, environmental economics, environmental epistemology and environmental education. He is regarded as one of the key environmental thinkers in Latin America.
OPTIONS:
- Yes
- It's impossible to say
- No
A: Yes

Tom Clancy's Splinter Cell is a 2002 stealth video game developed by Ubi Soft Montreal and built on the Unreal Engine 2. It is the first "Splinter Cell" game in the series. Endorsed by author Tom Clancy, it follows the activities of NSA black ops agent Sam Fisher. The character of Fisher is voiced by actor Michael Ironside.
Tom Clancy's Splinter Cell was a well known game in 2002, in the series. OPTIONS:
- Yes
- It's impossible to say
- No
A: It's impossible to say

input hypothesis: Frederick "Fred" Agius is a team captain
Context: Frederick "Fred" Agius (born 2 February 1984) is an Australian footballer who plays for South Australian Amateur Soccer League team Brahma Lodge. In 2003, he played Australian rules football for Central District in the South Australian National Football League (SANFL) reserve grade, making him one of few people to play at semi-professional level in both football and Australian rules.
OPTIONS:
- Yes
- It's impossible to say
- No
true or false: It's impossible to say

Context:
The 1969 Indian vice-presidential election was held on 30 August 1969. Gopal Swarup Pathak won the election to become the fourth Vice-President of India. The election was occurred since the sitting VP, Varahagiri Venkata Giri resigned to contest the presidential election after the death of incumbent President Zakir Husain.
Hypothesis: Varahagiri Venkata Giri was the first sitting Indian Vice-President to step down from his post willingly OPTIONS:
- Yes
- It's impossible to say
- No
It's impossible to say

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

Barbatodon is a mammal genus from the Upper Cretaceous period. It lived in Transylvania at the same time as some of the last dinosaurs and was a member of the extinct order of Multituberculata. It is within the suborder of Cimolodonta, and the family Kogaionidae. The genus "Barbatodon" was named by Radulescu R. and Samson P. in 1986.

Sentence: Barbatodon has been seen by George.

Output: It's impossible to say

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

Alexander Ivanovich Bastrykin (Russian: , born August 27, 1953 in Pskov) is a Russian official, former First Deputy Prosecutor General of Russia, and former Chairman of The Investigative Committee of the Prosecutor General's Office. Since January 15, 2011, he is the Head of The Investigative Committee of Russia.

Sentence: Alexander Ivanovich Bastrykin speaks german

Output:
It's impossible to say