Determine if the sentence is true based on the text below.
Hubble discovers black holes.

Medium-size black holes actually do exist, according to the latest findings from NASA's Hubble Space Telescope, but scientists had to look in some unexpected places to find them. The previously undiscovered black holes provide an important link that sheds light on the way in which black holes grow.
yes
Determine if the sentence is true based on the text below.
Alexander Bortnikov lives in Chechnya.

The Russian government announced the termination of its "counterterrorism operation" in Chechnya effective April 16. According to the leader of the Russian secret service, Alexander Bortnikov, 20,000 soldiers will leave Chechnya in order to normalise the situation in the autonomous republic of Russia. This happened on behalf of the Russian president Dmitry Medvedev who had already announced a possible withdrawal of the Russian troops at the G20 summit in the beginning of April this year. But some forces, the special forces of Moscow's ministry of the interior, will still stay in Chechnya.  Human rights activist Lew Ponomarjov welcomed the situation, saying that the counterterrorism situation in Chechnya had been a severe violation of human rights.
no
Determine if the sentence is true based on the text below.
The ban on ivory trade has been effective in protecting the elephant from extinction.

Banning ivory is the surest road to extinction for the African elephant, argue leaders in those countries.
no
Determine if the sentence is true based on the text below.
The military protection zone around Falklands was lifted.

Britain agreed to lift by March 31 a 150-mile military protection zone enforced around the islands since Argentina invaded them in 1982.

yes