premise: Person smiles at child inside of playground structure.
hypothesis: A mother helps her child climb the monkey bars.
explanation_1: There is no indication what the smiling person is doing or what action they are taking.  Just because the person is smiling at the child does not mean that it is a mother that helps her child climb the monkey bars.
premise_logic: exists e1 x1 x2 x3 x4 x5.(ne_per_person(x1) & at(e1,x5) & n_child(x5) & Theme(e1,x2) & Actor(e1,x1) & v_smile(e1) & of(x2,x3) & n_structure(x3) & of(x3,x4) & n_playground(x4) & n_inside(x2))
hypothesis_logic: exists e1 x1 x2 x3 x4 x5.(Theme(e1,x2) & Actor(e1,x1) & v_help(e1) & n_bar(x4) & of(x4,x5) & n_monkey(x5) & (x2 = x4) & n_climb(x2) & of(x2,x3) & n_child(x3) & of(x2,x1) & n_female(x1) & n_mother(x1))
premise_sim: exists e1 x1 x2 x3 x4 x5.(v_smile(e1) & of(x3,x4) & of(x2,x3) & ne_per_person(x1) & n_structure(x3) & n_playground(x4) & n_inside(x2) & n_child(x5) & at(e1,x5) & Theme(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2 x3 x4 x5.(v_help(e1) & of(x4,x5) & of(x2,x3) & of(x2,x1) & n_mother(x1) & n_monkey(x5) & n_female(x1) & n_climb(x2) & n_child(x3) & n_bar(x4) & Theme(e1,x2) & Actor(e1,x1) & (x2 = x4))