Greek Cypriot negotiator, Menelaos Menelaou, and Turkish Cypriot leader's representative, Mehmet Dana, held on Thursday a two-hour in-depth discussion on all issues arising from the recent visit of the UN Secretary General Antonio Guterres in Cyprus ahead of a meeting the two leaders of Cyprus, President Nikos Christodoulides and Turkish Cypriot leader Tufan Erhurman will have on August 26.