A person swimming underwater poses for a picture with some underwater vegetation.
A swimmer posses with plants.
the swimmer who poses with plants are an under water vegetation
exists e1 x1 x2 x3 x4 x5.(for(e1,x3) & with(x3,x4) & n_vegetation(x4) & of(x4,x5) & n_underwater(x5) & n_picture(x3) & Actor(e1,x1) & v_pose(e1) & n_swimming(x1) & Time(x1,x2) & n_underwater(x2) & n_person(x1))
exists e1 x1 x2.(with(e1,x2) & n_plant(x2) & Actor(e1,x1) & v_poss(e1) & n_swimmer(x1))