A 7-year-old girl who witnessed severe domestic violence between her parents presents with nightmares, clinginess, hypervigilance, and regression to bedwetting. Her PMHNP recommends trauma-focused cognitive-behavioral therapy (TF-CBT). The treatment plan includes parallel sessions with the child and her non-offending mother, psychoeducation about trauma responses, relaxation skills, and gradual development of a detailed account of what she experienced. Which TF-CBT component specifically helps the child process the traumatic experience by constructing this detailed account?