Context:
Glacier retreat or glacial retreat is type of glacial motion discussed in several articles, depending on the time frame of interest, and whether the climatological process or individual glaciers are being considered. Articles on these topics include:
Hypothesis: Glacial retreat effects glaciers. OPTIONS:
- Yes
- It's impossible to say
- No
Yes

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

"I'm So Sorry" is a song by American rock band Imagine Dragons. The song serves as the second promotional single and fourth track from the band's second studio album "Smoke + Mirrors". Along with the songs "Hopeless Opus" and "Gold" on "Smoke + Mirrors", the song touches upon lead-singer Dan Reynolds' depression struggles. The song has peaked at number 14 on the "Billboard" Hot Rock Songs chart.

Sentence: "I'm So Sorry" has a slow tempo.

Output: It's impossible to say

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

David Plotz (born January 31, 1970) is an American journalist and is currently the CEO of "Atlas Obscura", an online magazine devoted to discovery and exploration. A writer with "Slate" since its inception in 1996, Plotz was the online magazine's editor from June 2008 until July 2014, succeeding Jacob Weisberg.

OPTIONS:
- Yes
- It's impossible to say
- No
Hypothesis: Plotz was the editor of Slate for six years.
****
Answer:
Yes

[Q]: The 2007 Grand National (known as the John Smith's Grand National for sponsorship reasons) was the 160th official annual running of the world-famous Grand National steeplechase which took place at Aintree Racecourse near Liverpool, England, on 14 April 2007 and attracted the maximum permitted field of forty competitors for a total prize money of 700,000 including 399,140 to the winner. The 160th official annual Grand National steeplechase had the absolute maximum number of participants participate in it in 2007. OPTIONS:
- Yes
- It's impossible to say
- No
[A]: Yes

Problem: Hotel Reserve is a 1944 spy film starring James Mason as an innocent man caught up in pre-Second World War espionage. It was based on Eric Ambler's novel "Epitaph for a Spy". Unusually, it was both directed and produced by a trio: Lance Comfort, Mutz Greenbaum (credited as Max Greene) and Victor Hanbury.

Based on the paragraph above can we conclude that "Eric Ambler's novel "Epitaph for a Spy" was published in 1943."? OPTIONS:
- Yes
- It's impossible to say
- No

A: It's impossible to say

Context:
Foals are an English indie rock band from Oxford, England formed in 2005, consisting of lead vocalist and lead guitarist Yannis Philippakis, drummer and percussionist Jack Bevan, rhythm guitarist Jimmy Smith, bassist Walter Gervers, and keyboardist Edwin Congreave. Since the band's formation, their line-up has remained constant, except for the departure of former lead singer Andrew Mears.
Hypothesis: The lead singer of Foals always plays guitar. OPTIONS:
- Yes
- It's impossible to say
- No
It's impossible to say