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

The Yokosuka B4Y, (Navy Type 96 Carrier Attack Bomber), carrier torpedo bomber was used by the Imperial Japanese Navy Air Service from 1936 to 1943. The B4Y replaced the Mitsubishi B2M2 and was the last biplane bomber used operationally by the Imperial Japanese Navy. The Allied reporting name was "Jean".
Hypothesis: Before the implementation of the Yokosuka B4Y, the Imperial Japanese Navy have used biplane bombers.
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Answer:
Yes

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

Sara Takatsuki ( , Takatsuki Sara , born 10 August 1997) is a Japanese actress, model and singer born in Kanagawa, Japan. She is represented by the agency Sweet Power. She began her career in 2008. She belonged to bump.y Japanese singer group in the past.
Hypothesis: Sara Takatsuki has brown hair.
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Answer:
It's impossible to say

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

Cowie Castle is a ruined fortress in Aberdeenshire, Scotland. The site lies at the northern end of Stonehaven on the North Sea coast. To the immediate south is the Cowie Bridge crossing of the Cowie Water. Evidence of prehistoric man exists in the vicinity dating to the Iron Age in the form of ring cairns.
Hypothesis: Cowie Castle never had man living there.
****
Answer:
No