premise: Pedestrians are gazing at a display of books set out on a sidewalk under a tree.
hypothesis: Some people are attending an outdoor book sale.
explanation_1: The display of books may not be from a book sale.
explanation_2: Just because it is an outdoor book sale, that doesn’t imply that the display in under a tree.
explanation_3: You can look at a display of books outside and not be attending an outdoor book sale.
premise_logic: exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(at(e1,x2) & of(x2,x3) & under(e2,x6) & n_tree(x6) & on(e2,x5) & n_sidewalk(x5) & a_out(s1) & Manner(e2,s1) & Theme(e2,x4) & v_set(e2) & (x3 = x4) & n_book(x3) & n_display(x2) & Actor(e1,x1) & v_gaze(e1) & n_pedestrian(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_attend(e1) & n_sale(x2) & of(x2,x3) & n_book(x3) & a_outdoor(s1) & Theme(s1,x2) & n_people(x1))