A man wearing a yellow shirt is riding a large riding lawn mower, which is spraying cut grass behind him; pine trees are visible in the background.
There is a man on a lawnmower and he is cutting grass.
If a man is riding a lawn mower that is spraying cut grass, he is obviously cutting grass.
exists e3 e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12.(n_background(x12) & in(s3,x12) & Theme(s3,x10) & a_visible(s3) & n_tree(x10) & of(x10,x11) & n_pine(x11) & Theme(e3,x4) & Actor(e3,x1) & v_ride(e3) & Theme(e2,x8) & Actor(e2,x7) & v_spray(e2) & behind(x8,x1) & n_male(x1) & n_grass(x8) & of(x8,x9) & n_cut(x9) & (x4 = x7) & n_mower(x4) & of(x4,x6) & n_lawn(x6) & of(x4,x5) & n_riding(x5) & a_large(s2) & Theme(s2,x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shirt(x3) & a_yellow(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists e1 p1 x1 x2 x3.(n_male(x2) & Theme(e1,x3) & Actor(e1,x2) & v_cut(e1) & n_grass(x3) & exists x4 x5.((x1 = x4) & on(x4,x5) & n_lawnmower(x5) & n_man(x4)))