There are plenty of short ones. And how many do you need for "Is the sole manipulator of the controls of an aircraft for which the pilot is rated or has privileges"?

I don't think we have a definitional problem with aircraft. Or with pilot. Or with "sole manipulator"

"Rated" is a short one (although I don't think you mentioned it): "Rating means a statement that, as a part of a certificate, sets forth special conditions, privileges, or limitations." FAR 1.1. Or, as the FAA Chief Counsel said 29 years ago, ""Rating" as used in that section [61.51] refers to the rating in categories, classes, and types, as listed in Section 61.5, which are placed on pilot certificates."

The rest of the reg quote sort of sounds like "No, you can't do it. Here, read the FAR. It's gotta be somewhere in there." Bottom line, it's not somewhere in there.

The only real question is whether the FAA (a) intended and (b) will interpret "rated" in 61.51(e) to include the SIC type rating (despite the formal definition). My WAG is no, but that's only my WAG.