choices.label: A B C D
choices.text: application:accept file:archive marriage:getting married graduation certificate:stamp
explanation: without the "signature", the "contract" is invalid, and the "contract" must have a "signature" in order to take effect. "application" can be "accepted". the way to save "files" is "archive". "getting married" is the beginning of "marriage". without the "stamp", the "graduation certificate" is invalid, and the "graduation certificate" must have a "stamp" in order to take effect.
relation: contract signinature R5.4
relation: application accept R4.2
relation: file archive R3.10
relation: marriage getting married R3.10
relation: graduation certificate stamp R5.4