PHILADELPHIA (AP) — The parents of a mentally disabled woman held captive in a Philadelphia basement as part of what police believe was a Social Security fraud scheme are seeking custody of her two young children.Wilbert and Peggy Wanamaker are the parents of 29-year-old Tamara Breeden, among four people freed from the basement.Four people have been arrested in the case. Police say the suspects locked up disabled people and cashed their Social Security checks.Eight children and four young adults linked to the defendants are now in protective custody.Attorney Steven Wigrizer represents the Wanamakers. He says they want temporary custody of two children believed to be ages 2 and 7 who they say are Breeden's.A social services spokeswoman says the identities of the children haven't been determined.