| as.rolog | Translate simplified to canonical representation | 
| clear | Clear current query | 
| consult | Consult a prolog database | 
| findall | Invoke a query several times | 
| once | Invoke a query once | 
| portray | Translate an R call to a prolog compound and pretty print it | 
| postproc | Default hook for postprocessing | 
| preproc | Default hook for preprocessing | 
| query | Create a query | 
| rolog_done | Clean up when detaching the library | 
| rolog_init | Start prolog | 
| rolog_ok | Check if rolog is properly loaded | 
| rolog_options | Quick access the package options | 
| submit | Submit a query that has been opened with 'query()' before. |