| add_unique | Add a value to a current list that every value is unique |
| str_count | Count words in a text |
| trim | Remove whitespace from both sides of a string |
| upload_dico | Upload file |
| xdata | Transform the results to data frame |
| xdata_value | Transform the results to data frame |
| xentity | List of entities or relations |
| xfile | Show results |
| xhist | Graph 'xhist' |
| xparse | Call script Perl for extracting data from corpus |
| xplot | Graph 'xplot' |
| xprop | Graph 'xprop' |
| xrelation | List of entities or relations |
| xshow | Show results |
| xtest | Test each pair relations |