Two blonds are trying to hail a taxi cab.
Two blonde women are having trouble getting a ride.
When two blonds are trying to hail a taxi cab, it does not imply that they are having trouble in getting a ride.
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x2 x3.(Theme(e2,x2) & Actor(e2,x1) & v_hail(e2) & n_cab(x2) & of(x2,x3) & n_taxi(x3)) & n_blond(x1) & card_eq_2(x1))
exists e1 e2 s1 x1 x2 x3 x4.(Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & Theme(e1,x4) & Actor(e1,x3) & v_get(e1) & n_ride(x4) & (x2 = x3) & n_trouble(x2) & n_woman(x1) & a_blonde(s1) & Theme(s1,x1) & card_eq_2(x1))