The head of the Ukrainian delegation for talks with Russia is hopeful that a humanitarian corridor out of the eastern city of Kharkiv may be opened on Sunday. “God willing” there will be a corridor on Sunday, negotiator David Arachamija wrote on Facebook in response to a woman’s comment that he should listen and agree to a ceasefire with Russia. She was from Kharkiv and said she had experienced “10 days of hell.” Representatives of Ukraine and Russia last met in western Belarus on Thursday and agreed to have humanitarian corridors in place during their second round of talks. In Luhansk meanwhi…