premise: Some cars and many tents are set up at the foot of a mountain.
hypothesis: No one was able to drive to the camp site.
explanation_1: Many tents cannot be set up if no one could drive to the foot of a mountain.
explanation_2: There cannot be no one if there are some cars.
explanation_3: there is information about the setup of cars and tents in sentence 1 but, in sentence 2 it is mentioned that  No one was able to drive to the camp site.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5.(n_foot(x4) & at(e1,x4) & of(x4,x5) & n_mountain(x5) & a_up(s1) & Manner(e1,s1) & Theme(e1,x1) & v_set(e1) & n_tent(x3) & n_quantity(x3) & n_car(x2) & subset_of(x3,x1) & subset_of(x2,x1))
hypothesis_logic: exists x2 x3.(n_site(x2) & of(x2,x3) & n_camp(x3) & -exists p1 s1 x1.(Topic(s1,p1) & Actor(s1,x1) & a_able(s1) & exists e1.(to(e1,x2) & Actor(e1,x1) & v_drive(e1)) & n_one(x1)))
premise_sim: exists e1 s1 x1 x2 x3 x4 x5.(v_set(e1) & subset_of(x3,x1) & subset_of(x2,x1) & of(x4,x5) & n_tent(x3) & n_quantity(x3) & n_mountain(x5) & n_foot(x4) & n_car(x2) & at(e1,x4) & a_up(s1) & Theme(e1,x1) & Manner(e1,s1))
hypothesis_sim: exists x2 x3.(of(x2,x3) & n_site(x2) & n_camp(x3) & all p1 s1 x1.(all e1.(-v_drive(e1) | -to(e1,x2) | -Actor(e1,x1)) | -n_one(x1) | -a_able(s1) | -Topic(s1,p1) | -Actor(s1,x1)))