(Statements
{+(Assignment
  {+(MemberAccess
    {+(Identifier)+}
    {+(Identifier)+})+}
  {+(If
    {+(MemberAccess
      {+(Identifier)+}
      {+(Identifier)+})+}
    {+(MemberAccess
      {+(Identifier)+}
      {+(Identifier)+})+}
    {+(MemberAccess
      {+(MemberAccess
        {+(Identifier)+}
        {+(Identifier)+})+}
      {+(Identifier)+})+})+})+}
{-(If
  {-(Identifier)-}
  {-(Identifier)-}
  {-(Identifier)-})-})