Math logic problem...?

I don't think that this is possible because Iris would have to be either 1 or 2 spaces away from Elmo and 1 or 2 spaces away from Ollie (E - _ - I - _ - O or _- E - I - O - _). However, Wanda also has to be between Zelda and Elmo meaning it is either Z-W-E or E-W-Z (For those three in any case) meaning Iris has to be next to Z or E, either 1 or 3 places away from E. I could be wrong but I think that it's impossible.