Individual contestants have generated controversy in this competition for their past actions, or for being 'ringers' planted by the producers. A number of contestants had been disqualified for various reasons, such as for having an existing contract or undisclosed criminal records, although the show had been accused of double standard for disqualifying some but not others.
Producers have been accused of planting what within the show?
{'text': 'ringers', 'answer_start': 108}