Not clear to me how to respond to the people who responded to my question. Anyway, thank you. I had already tried many combinations of single and double quotes to no avail, but yo and behold the tick marks worked! Again, thanks for the responding to my original question.
We recently went from v5r11sp4 to v5r13sp2 and the hybridbodies named "Open_body.1" were changed to "Geometrical Set.1". Now the Releations.CreateFormula function fails to give the correct value and I suspect it has to do with the blank character in the name. If you rename it in the CATIA file...