A person driving a go-kart turning to his or her left.
The person is old.
The age of the person cannot be inferred. The person may or may not be old.
exists x1 x2 x6.(a_topic(x1) & (exists e1 s1 x3 x4 x5.(Theme(e1,x3) & Actor(e1,x2) & v_drive(e1) & n_left(x3) & to(x3,x5) & n_his(x5) & of(x3,x4) & n_turning(x4) & a_go-kart(s1) & Theme(s1,x3)) | exists e2.(Theme(e2,x6) & Actor(e2,x2) & v_drive(e2))) & n_left(x6) & of(x6,x1) & n_female(x1) & (x1 = x2) & n_person(x1))
exists s1 x1.(n_person(x1) & Theme(s1,x1) & a_old(s1))