I just had a quick thought about how maybe we should mark stress in number Solresol

- (hyphen/minus sign) for stress on a syllable like (ex: 5-715 "drawing")
= (equal sign) feminine marker (ex.14= "she")
_ (underscore) plural words (ex. 14_ "they")

I don't know, I like the look of 6-641=_ (a group of female lawyers) :)