Problem: Context: The increased amounts of carbon dioxide (CO2) and other greenhouse gases (GHGs) are the primary causes of the human-induced component of global warming.
Greenhouse effect changes global climate.
A: yes

Problem: Context: U.S. crude settled $1.32 lower at $42.83 a barrel.
Crude the light American lowered to the closing 1.32 dollars, to 42.83 dollars the barrel.
A: no

Problem: Context: Two Turkish engineers and an Afghan translator kidnapped in December were freed Friday.
translator kidnapped in Iraq
A: no

Problem: Context: GUS on Friday disposed of its remaining home shopping business and last non-UK retail operation with the 390m (265m) sale of the Dutch home shopping company, Wehkamp, to Industri Kapital, a private equity firm.
Wehkamp was based in the UK.
A:
no