premise: I think this lady is waiting for a cab.
hypothesis: The lady needs a ride.
explanation_1: The lady needs a ride because she is waiting for a cab.
explanation_2: Waiting for a cab is a paraphrase of needs a ride.
explanation_3: The cab gives a ride.
premise_logic: exists e1 p1 x1 x2.(n_lady(x2) & n_person(x1) & exists e2 x3.(for(e2,x3) & n_cab(x3) & Actor(e2,x2) & v_wait(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_think(e1))
hypothesis_logic: exists e1 x1 x2.(n_lady(x1) & Theme(e1,x2) & Actor(e1,x1) & v_need(e1) & n_ride(x2))