How many of the representatives are there who could visit a single one of the sites three times?

Hi-I got all but one of the questions right on this and I think it's because I misunderstood this rule: Yamamoto must visit Ghana in "A" month immediately preceding a month in which Watts visits Ghana. I took that to mean that every time we have W in Ghana, we have to have Y directly before it. Please correct me if I'm wrong but if that was the case, the rule would have read as follows: Yamamoto must visit Ghana in "EVERY" [not "a"] month immediately preceding a month in which Watts visits Ghana. So the rule, as written in the problem, actually means that in at least one month, Y must come before W in Ghana, but W or Y can appear one other time without having the other of Y/W "attached" to it as long as it doesn't interfere with V's placement. Combining that with other rules, the only time we can get W twice in Ghana and also allow for Z to be in France 3 times is if from month 1 to 4, the order is Y-W-V-W, and the only time we can get Y twice in Ghana and have Z appear in France three times is for the order in Ghana to be Y-V-Y-W, right? I understand why W can't be first (I drew some diagrams just to show myself it would't work) so I don't think I need to go through that. I got tripped on on this because when I originally made my diagrams, I got the deductions for the placement of V in Ghana/India correct but in combination with the Y/W rule, I took it to mean that the other spot absolutely had be to filled by Z and Y/W always had to be a block. So I made two diagrams, one showing the order for Ghana as Z-V-Y-W and the other showing Y-W-V-Z. If I'm now understanding this correctly, while that is a possibility, that isn't a necessity for this game to work, correct? I just want to make sure I'm understanding this instead of assuming that that's accurate and the explanation provided for the set up on this problem confused me a little. Let me know if I need to clarify anything above-thanks!