question: photo:memorial
choices.label: A B C D
choices.text: document:confidential antiques:collect diary:documentary books:check
explanation: "photo" has a "memorial" function. "document" has no "confidential" function, "document" may be "confidential". "antique" will be "collected", "antique" has a "collection" value, not a "collection" function "diary" has a "documentary" function "books" will be "checked", "books" have no "check" function
relation: photo memorial R3.3
relation: document confidential R3.2
relation: antiques collect R4.2
relation: diary documentary R3.3
relation: books check R4.2