The boy is surfing.
the boy is ten years old
The boy is surfing doesn't imply that he is ten years old.
exists e1 x1.(n_boy(x1) & Actor(e1,x1) & v_surf(e1))
exists e1 x1 x2.(n_boy(x1) & Theme(e1,x2) & Pivot(e1,x1) & r_more(e1) & v_old(e1) & n_year(x2) & card_eq_10(x2))