Man in brown suit stands with his hands behind his back and his shadow is cast on the flow as taken from above.
An individual in a brown suit is waiting for someone by the river.
The man may be standing for reasons other than waiting for someone.  The man may be standing anywhere, not necessarily by the river.
exists e1 p1 s1 x1 x2 x3 x4 x5 x7.(n_flow(x7) & exists e2 x6 x8 x9.((x5 = x6) & from(e2,x9) & n_above(x9) & Theme(e2,x8) & v_take(e2) & (x6 = x8) & on(x6,x7) & n_cast(x6)) & n_shadow(x5) & of(x5,x1) & n_male(x1) & n_male(x1) & n_male(x1) & behind(e1,x4) & n_back(x4) & of(x4,x1) & with(e1,x3) & n_hand(x3) & of(x3,x1) & Actor(e1,x1) & v_stand(e1) & in(x1,x2) & n_suit(x2) & a_brown(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(n_river(x4) & for(e1,x3) & by(x3,x4) & n_person(x3) & Actor(e1,x1) & v_wait(e1) & in(x1,x2) & n_suit(x2) & a_brown(s1) & Theme(s1,x2) & n_individual(x1))