A man wearing a white helmet is driving a four wheeled motorcycle in a dirt field.
The man is driving his vehicle outside.
A four wheeler motorcycle is a vehicle and "dirt field" implies he's outside.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6.(in(e2,x5) & n_field(x5) & of(x5,x6) & n_dirt(x6) & Theme(e2,x4) & Actor(e2,x1) & v_drive(e2) & n_motorcycle(x4) & a_wheeled(s2) & Theme(s2,x4) & card_eq_4(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_helmet(x3) & a_white(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(n_outside(x2) & of(x2,x3) & n_vehicle(x3) & of(x2,x1) & n_male(x1) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_drive(e1))