whichNon-defining relative: "The report, the findings of _____ were controversial, sparked a national debate."The report, the findings of which were controversial, sparked a national debate.NoteThe report, the findings of which were controversial, sparked a national debate.Elon.io is an online learning platformWe have an entire course teaching IELTS Vocabulary — Band 7+ grammar and vocabulary.Start learning IELTS Vocabulary — Band 7+ now