A kayaker wearing a blue wetsuit and black helmet paddles his yellow kayak in murky rolling rapids.
The man is on the river
Kayaking in murky rolling rapids can happen in various bodies of water and doesn't happen exclusively on a river.
exists e1 e2 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5 x6 x7.(Theme(e2,x6) & Actor(e2,x1) & v_paddle(e2) & in(x6,x7) & n_rapid(x7) & a_rolling(s5) & Theme(s5,x7) & a_murky(s4) & Theme(s4,x7) & n_kayak(x6) & a_yellow(s3) & Theme(s3,x6) & of(x6,x1) & n_male(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_helmet(x5) & a_black(s2) & Theme(s2,x5) & n_wetsuit(x4) & subset_of(x5,x3) & subset_of(x4,x3) & a_blue(s1) & Theme(s1,x3) & (x1 = x2) & n_kayaker(x1))
exists p1 x1 x2.(n_river(x2) & n_man(x1) & on(x1,x2))