A man dressed in protective gear walking along a stream with another man close behind him.
A man is walking along a stream at night time.
Walking along a stream does not imply it is night time.
exists e1 e2 s1 x1 x2 x3 x4 x5.(a_topic(x1) & for(e1,e2) & r_close(e2) & behind(e2,x1) & n_male(x1) & along(e2,x4) & with(x4,x5) & n_man(x5) & -(x5 = x1) & n_man(x1) & n_man(x1) & n_stream(x4) & Actor(e2,x2) & v_walk(e2) & in(e1,x3) & n_gear(x3) & a_protective(s1) & Theme(s1,x3) & Theme(e1,x2) & v_dress(e1) & (x1 = x2))
exists e1 x1 x2 x3 x4.(at(e1,x3) & n_time(x3) & of(x3,x4) & n_night(x4) & along(e1,x2) & n_stream(x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))