ANKARA — Referring to PM Erdogan's offer of joint academic research on the events of 1915, Turkey's FM says the move "is a call for Armenia that we hope to be answered".Turkey's FM Davutoğlu says on 1915 events: "History isn't just black and white - a grey area is needed. Everyone needs to show virtue by sharing the pains of the past."Turkish Prime Minister Recep Tayyip Erdoğan on Wednesday offered condolences to the descendants of the victims of the mass killing of Armenians during World War I. "The incidents of the First World War are our shared pain," said Erdoğan, "It is our hope and belief that the peoples of an ancient and unique geography, who share similar customs and manners will be able to talk to each other about the past with maturity and to remember together their losses in a decent manner."