I need help creating the VSEPR model for the following compound: F3S-SF (I'm assuming S2F4).

First, I need to find the molecular structure(s). (linear, tetrahedral, etc etc.) Then I need to find the hybridization(s) and the bond angle(s).

What I thought it was was trigonal bipyramidal (s connected to another S and three F's) and linear (one S connected to one F) and can't figure out why i'm wrong. There seems to be a lone pair on an S, so maybe that's what's screwing me up, but I'm generally not sure.

I've gotten it wrong four times on webassign, and one more time wrong will lose points on the question. So I came here again! thank you in advance.