An older man is skydiving.
An older man is skydiving on his birthday.
A man can skydive on days other than on his birthday.
exists e1 s1 x1.(Actor(e1,x1) & v_skydive(e1) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(on(e1,x2) & n_birthday(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_skydive(e1) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))