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

Roger Heman Sr. (February 27, 1898 March 14, 1969) was an American sound engineer. He won an Academy Award for Best Special Effects and was nominated for four more in the same category. He worked on more than 350 films during his career. His son was also a sound engineer.

OPTIONS:
- Yes
- It's impossible to say
- No
Hypothesis: Roger Heman Sr.'s only son was also a sound engineer.
****
Answer:
It's impossible to say

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

Marks was a manor house located near Marks Gate at the northern tip of the London Borough of Barking and Dagenham in London, England, the house standing on what is now Warren Hall Farm. The name Marks (historically Markes) is believed to have been derived from the "de Merk" family who build the original manor in the 14th Century. The manor house was demolished in 1808

OPTIONS:
- Yes
- It's impossible to say
- No
Hypothesis: The manor house was sold several times
****
Answer:
It's impossible to say

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

Rana amurensis (Khabarovsk frog, Siberian wood frog, Heilongjiang brown frog or Amur brown frog) is a species of true frog found in northern Asia. It ranges across western Siberia, as well as northeastern China, northeastern Mongolia, and on the northern Korean Peninsula and on Sakhalin. "Rana coreana" was previously included in this species as a subspecies.

OPTIONS:
- Yes
- It's impossible to say
- No
Hypothesis: Rana amurensis can be found in northeastern China.
****
Answer:
Yes