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

Zhang and his co-workers performed behavioral tests on two purified cannabinoids. The test results indicated that these two cannabinoids have anti-anxiety and antidepression-like effects in rats that may depend on the ability of cannabinoids to promote the production of new neurons in the hippocampus. Marijuana contains a complex mixture of chemicals including cannabinoids and may have somewhat different behavioral effects than the purified cannabinoids tested so far.
Hypothesis: Zhang and his coworkers did not perform any behavioral tests.
****
Answer:
No


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

Mr. Speaker, for two years the Canadian government has been engaged in secret negotiations on the multilateral agreement on investment, an agreement which goes well beyond the provisions of NAFTA in ceding power to multinationals and threatens to diminish even further the rights of nations to direct their own economies, provide safe and decent working conditions and protect the environment for future generations.
Hypothesis: The Canadian government governs Canadians.
****
Answer:
Yes


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

The Galaxy Nexus (GT-I9250) is a touchscreen Android smartphone co-developed by Google and Samsung Electronics. It is the third smartphone in the Google Nexus series, a family of Android consumer devices built by an original equipment manufacturer partner. The phone is the successor to Google's previous flagship phones, the Nexus One and Nexus S.
Hypothesis: Google sold Samsung the design for the Galaxy Nexus phone.
****
Answer:

It's impossible to say