To avoid further price-gouging, Norway's Ministry of Government Administration announced that it was freezing prices on lodging, food and beverages in the Lillehammer area during the Winter Olympics.
Can we say the following?
Norway hosted the Winter Olympic Games.

yes

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.
Can we say the following?
Alexander Bortnikov lives in Chechnya.

no

THE persistence and severity of the drought in the Murray-Darling Basin has been described as "unprecedented" after late summer inflows to the river system fell to a 117-year low. The "bleak'' outlook for next three months was adding to the grim news, the Murray-Darling Basin Authority said. Irrigation water for Australia's food bowl will be dependent almost entirely on rainfall as basin states hold back water for critical human needs. "The persistence and severity of this drought, particularly over the past three years, is unprecedented,'' authority chief executive Rob Freeman said as he delivered the basin's latest drought update.
Can we say the following?
The Murray-Darling Basin is in central Australia.

no

On opening day Salesforce.com's stock was up $6.20 to $17.20, a 56.4% increase over the initial offering price of $11.
Can we say the following?
Opening day of the stock of Salesforce.com rose 56.4% over the initial offering price.
yes