An older man is sitting on a red bench with a younger man.
An old man and his grandson are sitting on a bench
A younger man with an older man doesn't have to be the mans grandson.
exists e1 s1 s2 s3 x1 x2 x3.(with(e1,x3) & n_man(x3) & r_more(s3) & a_younger(s3) & Theme(s3,x3) & on(e1,x2) & n_bench(x2) & a_red(s2) & Theme(s2,x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3 x4.(on(e1,x4) & n_bench(x4) & Actor(e1,x1) & v_sit(e1) & subset_of(x3,x1) & n_grandson(x3) & of(x3,x2) & n_male(x2) & subset_of(x2,x1) & n_man(x2) & a_old(s1) & Theme(s1,x2))