void addRelation(Ptr_ el){childs_.push_back(el);}
Node* Node::AddChild(Node* node)
{
childs_.push_back(node);
return node;
}
void addRelation(Ptr_ el){childs_.push_back(el);}
Node* Node::AddChild(Node* node)
{
childs_.push_back(node);
return node;
}