java.FILE
  PACKAGE_STATEMENT
    PACKAGE_KEYWORD
    WHITE_SPACE
    JAVA_CODE_REFERENCE
      JAVA_CODE_REFERENCE
        IDENTIFIER
        REFERENCE_PARAMETER_LIST
          <empty list>
      DOT
      IDENTIFIER
      REFERENCE_PARAMETER_LIST
        <empty list>
    SEMICOLON
  WHITE_SPACE
  IMPORT_LIST
    IMPORT_STATEMENT
      IMPORT_KEYWORD
      WHITE_SPACE
      JAVA_CODE_REFERENCE
        JAVA_CODE_REFERENCE
          IDENTIFIER
          REFERENCE_PARAMETER_LIST
            <empty list>
        DOT
        IDENTIFIER
        REFERENCE_PARAMETER_LIST
          <empty list>
      SEMICOLON
  WHITE_SPACE
  IMPLICIT_CLASS
    CLASS
      MODIFIER_LIST
        <empty list>
      CLASS_KEYWORD
      WHITE_SPACE
      IDENTIFIER
      TYPE_PARAMETER_LIST
        <empty list>
      EXTENDS_LIST
        <empty list>
      IMPLEMENTS_LIST
        <empty list>
      WHITE_SPACE
      LBRACE
      WHITE_SPACE
      RBRACE
    WHITE_SPACE
    FIELD
      MODIFIER_LIST
        <empty list>
      TYPE
        INT_KEYWORD
      WHITE_SPACE
      IDENTIFIER
      SEMICOLON