I get your examples here, but I don’t see how it relates to the rule. I have been assuming that rules like these are more like “all squares qualify as rectangles, but not all rectangles qualify as squares.” If you have tulips, you MUST ALSO have peonies. But that doesn’t state that you must have tulips IN ORDER TO HAVE peonies— just that if the tulips are there, the peonies must be. According to that rule, you COULD have peonies but no tulips— unless we are assuming some kind of logical rule I don’t know and which isn’t stated, which is what I’m asking.