[selected_node] | element/part | 
+-root | element/part | 
| +-integer | element/part | 
| | +-simple | number/integer | 24
| | +-negative | number/integer | -24
| | +-leading_zero | number/integer | 30
| +-fraction-decimal | element/part | 
| | +-simple | number/fraction-decimal | 24.0000
| | +-negative_sign | number/fraction-decimal | -24.0000
| | +-standard | number/fraction-decimal | 7.0000
| | +-scientific_notation | number/fraction-decimal | 0.0070
| | +-capital_letter_possible | number/fraction-decimal | 0.0070
| | +-positive_without_sign | number/fraction-decimal | 7000.0000
| | +-optional_plus_sign | number/fraction-decimal | 7000.0000
| | +-scientific_notation_1 | number/fraction-decimal | 11.0000
| | +-scientific_notation_2 | number/fraction-decimal | 0.0070
| | +-scientific_notation_3 | number/fraction-decimal | 0.0070
| | +-scientific_notation_4 | number/fraction-decimal | 0.0070
| | +-standard | number/fraction-decimal | -0.1234
| +-fraction-vulgar | element/part | 
| | +-positive | number/fraction-vulgar | 1/2
| | +-negative | number/fraction-vulgar | -2/3
| +-complex-cartesian | element/part | 
| | +-standard | number/complex-cartesian | 2.0000+4.0000
| | +-negative_imaginary_part | number/complex-cartesian | 2.0000-4.0000
| | +-negative_real_part | number/complex-cartesian | -2.0000+4.0000
| | +-both_parts_negative | number/complex-cartesian | -2.0000-4.0000
| | +-decimal_fractions | number/complex-cartesian | -1.2000+5.0000
| | +-scientific_notation | number/complex-cartesian | -1200000.0000+11.0000
| +-complex-polar | element/part | 
| | +-standard | number/complex-polar | 2.0000*exp(125.2644)
| | +-with_capital_letter_e | number/integer | -2
| | +-without_times_sign_1 | number/fraction-decimal | -2.0000
| | +-without_times_sign_2 | number/fraction-decimal | -2.0000
| | +-decimal_fraction | number/complex-polar | 1.5000*exp(133.3139)
| | +-scientific_notation | number/fraction-decimal | -15000.0000