premise: A gray rally car is being driven by two adult males while a large white container is tied down on top of the roof.
hypothesis: The men hope the container won't fly off the roof.
explanation_1: How can a countainer fly off from a relly car
explanation_2: You can not infer it won't fly.
explanation_3: One can drive without worrying that the container will fly off the roof.
premise_logic: exists p1 s1 x1 x6.(n_roof(x6) & a_topic(x1) & exists e1 p2 s2 x2 x3.(exists e2 s3 s4 s5 x4 x5.(on(e2,x5) & of(x5,x6) & n_top(x5) & a_down(s5) & Manner(e2,s5) & Theme(e2,x4) & v_tie(e2) & n_container(x4) & a_white(s4) & Theme(s4,x4) & a_large(s3) & Theme(s3,x4)) & while(e1,p2) & Actor(e1,x3) & n_male(x3) & a_adult(s2) & Theme(s2,x3) & card_eq_2(x3) & Theme(e1,x2) & v_drive(e1) & n_car(x2)) & that(x1,p1) & n_rally(x1) & a_gray(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 p1 x1 x2 x3.(n_roof(x3) & n_container(x2) & n_man(x1) & -exists e2 s1.(a_off(s1) & Manner(e2,s1) & Theme(e2,x3) & Actor(e2,x2) & v_fly(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_hope(e1))