(Program
  (MemberAccess
  { (MemberAccess
      (Identifier)
      (Identifier))
  ->(Identifier) }
  { (Identifier)
  ->(Identifier) })
  (MemberAccess
  { (Identifier)
  ->(MemberAccess
      (Identifier)
      (Identifier)) }
  { (Identifier)
  ->(Identifier) }))