Tie her into a tight squat position, gag her slut mouth and instruct her to start sweeping the filthy dungeon floor. Discuss her as though she were not there with Daniel to ascertain how he would like her training to proceed.
Make her a deal - she can wear the gag all week or speak properly right from the start and use Yes Sir, No Sir, Thank you Sir. Inspect and observe her as she is whipped, fingered, probed, pinched and slapped, and note her reactions for future use.