premise: A group of construction workers are walking.
hypothesis: the workers are walking
explanation_1: Both sentence have workers walking to their destination.
explanation_2: To be a construction worker you have to be a worker, otherwise the two sentences are identical anyway
explanation_3: Construction workers are workers. So they are walking as stated in sentence one.
premise_logic: exists e1 x1 x2 x3.(Actor(e1,x1) & v_walk(e1) & of(x1,x2) & n_worker(x2) & of(x2,x3) & n_construction(x3) & n_group(x1))
hypothesis_logic: exists e1 x1.(n_worker(x1) & Actor(e1,x1) & v_walk(e1))
premise_sim: exists e1 x1 x2 x3.(v_walk(e1) & of(x2,x3) & of(x1,x2) & n_worker(x2) & n_group(x1) & n_construction(x3) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_walk(e1) & n_worker(x1) & Actor(e1,x1))