premise: A worker is doing a job on scaffolding.
hypothesis: A human working
explanation_1: Doing a job and working are synonyms.
explanation_2: worker is a human. Doing a job is rephrased as working.
explanation_3: A worker is a human and if he is a worker doing a job he must be working.
premise_logic: exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x3) & n_scaffolding(x3) & n_job(x2) & n_worker(x1))
hypothesis_logic: exists s1 s2 x1.(a_topic(s1) & of(s1,x1) & n_working(x1) & a_human(s2) & Theme(s2,s1))
premise_sim: exists e1 x1 x2 x3.(v_do(e1) & on(x2,x3) & n_worker(x1) & n_scaffolding(x3) & n_job(x2) & Theme(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists s1 s2 x1.(of(s1,x1) & n_working(x1) & a_topic(s1) & a_human(s2) & Theme(s2,s1))