premise: Workers are wearing their hard hats while on a ledge.
hypothesis: Workers are fixing a ledge.
explanation_1: Just because workers are wearing their hard hats does not mean they are fixing a ledge. They could be on ledge to walk to the other side.
premise_logic: exists e1 s1 x1 x2 x3.(on(e1,x3) & n_ledge(x3) & r_while(e1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_hat(x2) & a_hard(s1) & Theme(s1,x2) & of(x2,x1) & n_thing(x1) & n_worker(x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_fix(e1) & n_ledge(x2) & n_worker(x1))
premise_sim: exists e1 s1 x1 x2 x3.(v_wear(e1) & r_while(e1) & on(e1,x3) & of(x2,x1) & n_worker(x1) & n_thing(x1) & n_ledge(x3) & n_hat(x2) & a_hard(s1) & Theme(s1,x2) & Theme(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_fix(e1) & n_worker(x1) & n_ledge(x2) & Theme(e1,x2) & Actor(e1,x1))