 Complete the following phrase:  For instance, many of the OTC were initially gathered together, supported, taken care of, and educated by the French Oeuvre de Secours aux Enfants OSE, sometimes for many months in the OSE chateaux these were typically very large houses and grounds. They stayed with OSE until OSE able to pass them on to the Joint, or the Quakers, which then took them to the United States. Under the leadership of Andree Salomon, OSE did manage to gather together about 350 such children in three large groups, who travelled to America with the aid of the organizations mentioned. Many of these children came from the 