Two police officers are riding around on horses in the street.
The officers are looking for a suspect
Riding does not imply looking for a suspect.
exists e1 p1 x1 x2 x3 x4.(n_street(x4) & on(e1,x3) & in(x3,x4) & n_horse(x3) & exists s1.(Theme(s1,x1) & a_around(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_ride(e1) & n_officer(x1) & of(x1,x2) & n_police(x2) & card_eq_2(x1))
exists e1 x1 x2.(n_officer(x1) & for(e1,x2) & n_suspect(x2) & Actor(e1,x1) & v_look(e1))