Clarification on the "orientation" of chromosomal rearrangements
I think the picture will help you. In fact, to determine which kind of rearrangement for the chromosomal, we need to define an "orientation". However, this orientation is not fixed. It is a definition compared with the two chromosomes before and after the rearrangement. As the picture shows, the duplicated sequence after rearrangement should be in the same orientation, if one of them not, it should be described as "inversion after duplication". For deletion, there is no difference in the orientation if the remain parts still in their previous pattern. The key point to understand,  is to check the sequence before and after the rearrangement and find difference(s) between them, then compare to this picture(which is the definition of rearrangement) to find if the chromosome has one or multiple rearrangements.
Hope this could help you.