In order to have any meaning at all, the rule would have to specify that each contact be made by direct and independent initiation for each contact. Otherwise, the term "contemporaneous" has no meaning, because it doesn't limit how many consecutive contacts can be counted per operator instruction. E.g., what if I use a macro or set of macros that is able to make two or more contacts back to back as the result of a single mouse-click? What about three? What about ten? Without an independent initiation for each contact, there is no clear answer to the "how many" question. They need some clarification.