So I think in most cases where we used to not get ICONS in the result MRS in some of the regression tests, an argument-drop (e.g. head-opt-subj) is involved.
But I certainly did not rearrange anything in the type; I simply replaced diff-lists with append lists (you can click on the picture and the zoom in, I think):
Why would a diff originate from that? Why were we not getting the ICONS using the type on the right and suddenly started getting it with the type on the left (the very bottom line of the MRS)?
To clarify, I think the diff is good, so, it is not a problem but I would just like to understand what happened. Why was the diff-list for ICONS underpecified with the type on the right?