(Program
{+(Call
  {+(Identifier)+}
  {+(TextElement)+}
  {+(Empty)+})+}
{+(Call
  {+(MemberAccess
    {+(Identifier)+}
    {+(Identifier)+})+}
  {+(Empty)+})+}
{+(Call
  {+(Identifier)+}
  {+(Integer)+}
  {+(Integer)+}
  {+(Empty)+})+}
{+(Call
  {+(Identifier)+}
  {+(Integer)+}
  {+(Integer)+}
  {+(Empty)+})+}
{-(Identifier)-}
{-(MemberAccess
  {-(Identifier)-}
  {-(Identifier)-})-}
{-(Identifier)-})