A man in jeans and a sweatshirt on an ATV, with a helmet on.
A person is in the countryside riding an ATV.
There is nothing in a man on an ATV that implies where he is, such as in the countryside. Also, just because the man is on the ATV doesn't necessarily imply he is actively riding it.
exists s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(s1) & subset_of(x3,s1) & on(x3,x4) & with(x4,x5) & Theme(s2,x6) & a_on(s2) & (x5 = x6) & n_helmet(x5) & ne_org_atv(x4) & n_sweatshirt(x3) & subset_of(x1,s1) & in(x1,x2) & n_jeans(x2) & n_man(x1))
exists p1 x1 x2.(n_countryside(x2) & exists e1 x3 x4.(in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_ride(e1) & ne_org_atv(x4) & (x2 = x3)) & n_person(x1))