premise: Kyrgyzstan, an impoverished but strategically located republic that hosts both Russian and US air bases, has been struggling to stabilise since longtime president Askar Akayev was overthrown in a street revolt in March 2005.
  The country has been plagued by political unrest, contract killings and organised crime.
  In November, opposition demonstrators spent a week camped out in the main square of Bishkek demanding constitutional reform.
  After an outbreak of violence, Bakiyev finally gave in, signing the new constitution in what he said was "one more step towards democracy."
  The new constitution limits the president's powers to dissolve parliament and also gives the legislature the right to appoint the government.
   What things did Bakiyev accomplish by signing the new constitution?
hypothesis: an outbreak of violence