Problem: Emperor is a Norwegian black metal band formed in 1991, regarded as highly influential by critics and emerging black metal bands. The group split up in 2001, but reunited from 2005 to 2007 for a few festival dates and brief US tours, and again reunited in 2013 to 2014. The group was founded by Ihsahn (guitar/vocal) and Samoth (then, drums).

Based on the paragraph above can we conclude that "Norwegian black metal bands are not popular these days."? OPTIONS:
- Yes
- It's impossible to say
- No

A: It's impossible to say

Problem: The S-99 (Russian: -99 ) experimental submarine was the only ship of the Soviet Project 617 submarine class (NATO reporting name: Whale class) that the Soviet Union built during the early Cold War and the only Soviet submarine which had a Walter engine fuelled by high test peroxide (HTP).

Based on the paragraph above can we conclude that "htp was expensive in that era"? OPTIONS:
- Yes
- It's impossible to say
- No

A: It's impossible to say

Problem: The Coy C. Carpenter Library and Dorothy Carpenter Medical Archives, located at Wake Forest School of Medicine, is a library named after the first dean of the university's medical school, Coy Cornelius Carpenter, M.D., and his wife, Dorothy (Mitten) Carpenter.

Based on the paragraph above can we conclude that "The Coy C. Carpenter Library is the largest in the state."? OPTIONS:
- Yes
- It's impossible to say
- No

A:
It's impossible to say