31. A COI does not necessarily imply a physical separation of the infrastructure, but can do so. 32. Residential segregation can be defined as, " physical separation of the residential locations between two groups. 33. When grandchildren are in their teens to late 20s, there is a healthy period of physical separation . 34. "Only such a physical separation will bring peace and mutual respect, " he said. 35. "I think we need physical separation so the terrorists won't come in ." 36. The distance between the two former friends and teammates was much greater Sunday than mere physical separation suggested. 37. Allegations in the media arose in 2007 about the physical separation of the new school from the old. 38. He talks not of integration with the Palestinians but of a " physical separation " from them. 39. The fighting has already led to some physical separation , as people move to their own groups for safety. 40. Despite the physical separation , Pawnees still traveled great distances to steal Comanche horses in Texas and New Mexico.