question: production:quality inspection:sale
choices.label: A B C D
choices.text: going to school:preview:review investigation:organization:analysis supervision:improvement:efficiency unemployment:poverty:relief
explanation: first "production", then "quality inspection", and then "sale", the three follow a chronological order. "preview" first, then "review", but the two do not have a chornological relationship with "going to school". first "investigation", then "organization", then "analysis", and the three follow a chronological order. "supervision" and "improvement" do not have chronological relationship. "poverty" first, then "relief", but "unemployment" and "poverty" do not follow a chronological order.
relation: production quality inspection sale R5.2
relation: preview review R3.10
relation: investigation organization analysis R5.2
relation: poverty relief unemployment R3.10