Accidental Rise

I used an Accidental Rise, because I wanted to make one word of the sentence more prominent than the others.
Alternative Questions.
Alternative questions have the low-rising nuclear tone in the first intonation-group and the low-falling nuclear tone in the final intonation-group.
Disjunctive Question.
Disjunctive question consists of two intonation-groups.
The first intonation-group has generally the low-falling nuclear tone. I used the low-rising nuclear tone in the final intonation-group to show that I am not certain of the facts expressed in the first part of the question. But I could also use the low-falling nuclear tone in the tag to show that I am certain of the facts expressed in the first part of the question.