Complex sentence: To fill the gap, volunteer-led organizations offer services to inmates, such as yoga, which Lucas has found to be the best modality for healing, based upon her experience of recovery following being a sex-trafficking survivor.
Split into simpler sentences: To fill the gap, volunteer-led organizations offer services to inmates, such as yoga, which Lucas has found to be the best modality for healing. This is based upon her experience of recovery as a sex-trafficking survivor.