Three small children in yellow shirts and one in a red shirt are rollerblading on a shiny marble courtyard.
Four children are rollerblading in their grandfather's courtyard.
Nothing about the children playing in the courtyard implies their grandfather's ownership of the courtyard.
exists e1 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7.(on(e1,x6) & n_courtyard(x6) & of(x6,x7) & n_marble(x7) & a_shiny(s4) & Theme(s4,x6) & Actor(e1,x1) & v_rollerblade(e1) & subset_of(x4,x1) & in(x4,x5) & n_shirt(x5) & a_red(s3) & Theme(s3,x5) & n_thing(x4) & card_eq_1(x4) & subset_of(x2,x1) & in(x2,x3) & n_shirt(x3) & a_yellow(s2) & Theme(s2,x3) & n_child(x2) & a_small(s1) & Theme(s1,x2) & card_eq_3(x2))
exists e1 x1 x2 x3.(in(e1,x3) & n_courtyard(x3) & of(x3,x2) & n_grandfather(x2) & of(x2,x1) & n_thing(x1) & Actor(e1,x1) & v_rollerblade(e1) & n_child(x1) & card_eq_4(x1))