He intends to spend more time in the two capitals (Riyadh and Sanaa) to discuss the draft principles paper which was developed here in Geneva - as he said, 'until we reach a preliminary agreement', as you know, before leaving us here in Geneva, he said both sides had shown signs of constructive engagement regarding the possibility of reaching a humanitarian truce and that there was emerging common ground upon which to build an eventual ceasefire coupled with the withdrawal of combattants.