premise: Workers wearing orange vests work on fence.
hypothesis: Guys working outside.
explanation_1: The fence could be inside and be part of a display or stage work, rather than outside.
explanation_2: The workers could be guys or gals and just because they are wearing orange vest does not mean they are outside.
explanation_3: Workers working on a fence could have been working indoors.
premise_logic: exists e1 e2 x1 x2 x3 x4.(on(e2,x4) & n_fence(x4) & Actor(e2,x1) & v_work(e2) & n_vest(x1) & of(x1,x3) & n_orange(x3) & Actor(e1,x1) & v_wear(e1) & of(x1,x2) & n_worker(x2))
hypothesis_logic: exists e1 s1 x1.(a_outside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_work(e1) & n_guy(x1))
premise_sim: exists e1 e2 x1 x2 x3 x4.(v_work(e2) & v_wear(e1) & on(e2,x4) & of(x1,x3) & of(x1,x2) & n_worker(x2) & n_vest(x1) & n_orange(x3) & n_fence(x4) & Actor(e2,x1) & Actor(e1,x1))
hypothesis_sim: exists e1 s1 x1.(v_work(e1) & n_guy(x1) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x1))