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

Mars Audiac Quintet is the third album by the band Stereolab, released in August 1994. Initial releases of the CD came with bonus two-track disk, the double vinyl album came with a 7". During the recording of the album, guitarist Sean O'Hagan left as a full-time member to form his own group, while keyboardist Katharine Gifford was added.
Hypothesis: Sean O'Hagan still occasionally plays for Stereolab as a part-time member
****
Answer:
It's impossible to say

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

In the mathematical field of topology, the Alexandroff extension is a way to extend a noncompact topological space by adjoining a single point in such a way that the resulting space is compact. It is named for the Russian mathematician Pavel Alexandrov.
Hypothesis: Pavel Alexandrov was a compact Russian.
****
Answer:
It's impossible to say

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

Great Balls of Fire! is a 1989 American biographical film directed by Jim McBride and starring Dennis Quaid as rockabilly pioneer Jerry Lee Lewis. Based on a biography by Myra Lewis and Murray M. Silver Jr., the screenplay is written by McBride and Jack Baran. The film is produced by Adam Fields, with executive producers credited as Michael Grais, Mark Victor, and Art Levinson.
Hypothesis: Rockabilly was the most popular genre of music during filming of great balls of fire.
****
Answer:
It's impossible to say