Context:
I'm really strongly committed to clean water and clean air, and cleaning up the new kinds of challenges like global warming. He is right that I'm not in favor of energy taxes. I am in favor of tax cuts to encourage and give incentives for the quicker development of these new kinds of technologies.
Hypothesis: I'm not in favor of energy taxes because they are too expensive
It's impossible to say
Context:
Petitioners submit such a blanket extension of existing terms exceeds Congress's power under the Copyright Clause and it violates the First Amendment. Now, the Government has responded to petitioners' argument in a way that betrays a simple but fundamental confusion.
Hypothesis: Petitioners didn't send  such a blanket extension of existing terms.
No
Context:
A front page editorial in South Africa's largest weekly newspaper, The Sunday Times, criticizes President Thabo Mbeki's "incompetent" handling of the country's ongoing anti-immigrant violence, and urges him to resign from office. "Either he will not lead or he cannot lead. Whichever is the case, the conclusion is the same: he must go," the editorial reads. "And so we appeal to President Mbeki: Stand down in the interests of your country."
Hypothesis: A lot of people read the newspaper

It's impossible to say