premise: Lot of people are gathered in front of a building.
hypothesis: People walk back inside the building.
explanation_1: They are contradictory bc in the first they are outside but the second sentence states they walk back inside.
explanation_2: In front of a building is different from inside the building.
explanation_3: If people are going inside the building, they are not gathered in front of it.
premise_logic: exists e1 x1 x2 x3 x4.(in(e1,x3) & of(x3,x4) & n_building(x4) & n_front(x3) & Theme(e1,x1) & v_gather(e1) & of(x1,x2) & n_people(x2) & n_lot(x1))
hypothesis_logic: exists e1 s1 x1 x2.(n_building(x2) & inside(e1,x2) & a_back(s1) & Manner(e1,s1) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
premise_sim: exists e1 x1 x2 x3 x4.(v_gather(e1) & of(x3,x4) & of(x1,x2) & n_people(x2) & n_lot(x1) & n_front(x3) & n_building(x4) & in(e1,x3) & Theme(e1,x1))
hypothesis_sim: exists e1 s1 x1 x2.(v_walk(e1) & n_people(x1) & n_building(x2) & inside(e1,x2) & a_back(s1) & Manner(e1,s1) & Actor(e1,x1))