A lady stands at her ice cream stand.
A lady is standing with ice cream.
Stands and standing are the same thing.  At her ice cream stand implies that she is with ice cream.
exists e1 x1 x2 x3 x4.(at(e1,x2) & n_stand(x2) & of(x2,x4) & n_cream(x4) & of(x2,x3) & n_ice(x3) & of(x2,x1) & n_female(x1) & Actor(e1,x1) & v_stand(e1) & n_lady(x1))
exists e1 x1 x2 x3.(with(e1,x2) & n_cream(x2) & of(x2,x3) & n_ice(x3) & Actor(e1,x1) & v_stand(e1) & n_lady(x1))