Split population duration

[Manga Ndiaye]

Hello, I'm trying to make a Split population duration with the spsurv command but I can't understand how to get on one side the survival determinants and on the other side the lifetime determinants

stset duree, failure(survie)

spsurv survie duree region secteur regime_jur FCEFFE lcapsocial cap_class, id(rge_id) seq(duree)

I need your help