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

In mathematics, an O*-algebra is an algebra of possibly unbounded operators defined on a dense subspace of a Hilbert space. The original examples were described by and , who studied some examples of O*-algebras, called Borchers algebras, arising from the Wightman axioms of quantum field theory. and began the systematic study of algebras of unbounded operators.
Hypothesis: O*-algebra is very important to learn.
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Answer:
It's impossible to say

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

A few growers place charcoal in the bottom of containers to absorb excess salts and maintain sweet soil, if plants are grown more than a few months.
Hypothesis: Growers think growing plants is stupid.
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Answer:
It's impossible to say

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

How to defend against a psychological family violence claim<br>Keep records of all communications. Avoid speaking to someone who's accused you of psychological or emotional abuse unless those conversations can be recorded in some way. [substeps] When you do have to interact with them, do it over email or text message whenever possible so you can maintain a record of the conversation.
Hypothesis: dont keep records of it
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Answer:
No