A man, protected by a helmet and other protective gear, is battling his way down rough rapids in a red one-man kayak.
The man is walking in the desert.
If the man is battling his way down river rapids, then he is not walking in the desert.
exists e2 e1 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(n_way(x7) & of(x7,x6) & n_male(x6) & n_gear(x6) & a_protective(s2) & Theme(s2,x6) & Theme(e2,x7) & Actor(e2,x1) & v_battle(e2) & down(x7,x8) & in(x8,x9) & n_kayak(x9) & of(x9,x10) & n_one-man(x10) & a_red(s4) & Theme(s4,x9) & n_rapid(x8) & a_rough(s3) & Theme(s3,x8) & Actor(e1,x3) & -(x5 = x6) & n_gear(x5) & a_protective(s1) & Theme(s1,x5) & n_helmet(x4) & subset_of(x5,x3) & subset_of(x4,x3) & Theme(e1,x2) & v_protect(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(n_desert(x2) & n_man(x1) & in(e1,x2) & Actor(e1,x1) & v_walk(e1))