premise: Lot of people are gathered in front of a building.
hypothesis: People gather in front of a building.
explanation_1: People gather in a building.
explanation_2: Lot of people is the same as people.
explanation_3: If a lot of people are gathered, people gather.
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 x1 x2 x3.(in(e1,x2) & of(x2,x3) & n_building(x3) & n_front(x2) & Actor(e1,x1) & v_gather(e1) & n_people(x1))