Original sentence: In so doing, Russian-speaking regions were infuriated that the new parliament desired to make Ukrainian the sole state language at all levels, seemingly pressing ahead with Ukrainian nationalism.In the meantime, on the morning of 27 February, Berkut units from Crimea and other regions of Ukraine (dissolved by the decree of 25 February) seized checkpoints on the Isthmus of Perekop and Chonhar peninsula.On 22 February 2014 Ukrainian protesters overthrew the democratically elected President of Ukraine, Viktor Yanukovych, after months of protests.Since then they have controlled all land traffic between Crimea and continental Ukraine.The opposition took control of the capital city Kiev and the government district; soon after President Yanukovych left for Kharkiv to attend a summit of south-eastern regions, the Verkhovna Rada (Ukrainian parliament) voted to restore the 2004 version of the Constitution of Ukraine and remove Yanukovych from power; however, the impeachment procedure, as defined by Ukrainian constitution Article 111, was not followed.They ousted the prime minister appointed by the President of Ukraine and installed a pro-Russian politician, Sergey Aksyonov, as Crimea's prime minister
Edited sentence: In so doing, Russian-speaking regions were infuriated that the new parliament desired to make Ukrainian the sole state language at all levels, as they were convinced it was has to do with alleged Ukrainian nationalism.In the meantime, on the morning of 27 February, Berkut units from Crimea and other regions of Ukraine (dissolved by the decree of 25 February) illegally seized checkpoints on the Isthmus of Perekop and Chonhar peninsula.On 22 February 2014 Ukrainian protesters overthrew the democratically elected President of Ukraine, Viktor Yanukovych, after months of peaceful protests.Since then they have illegally controlled all land traffic between Crimea and continental Ukraine.The protesters took control of the capital city Kiev and the government district; soon after President Yanukovych left for Kharkiv to attend a summit of south-eastern regions, the Verkhovna Rada (Ukrainian parliament) voted to restore the 2004 version of the Constitution of Ukraine and remove Yanukovych from power; however, the impeachment procedure, as defined by Ukrainian constitution Article 111, was not followed.They staged a coup in which they illegally ousted the prime minister appointed by the President of Ukraine and installed a pro-Russian politician, Sergey Aksyonov, as Crimea's prime minister