premise: A group of men work on some streetcar rails.
hypothesis: The group of men are workers.
explanation_1: If the men are at work on a type of construction project, they are workers.
explanation_2: Men who work some rails are workers.
explanation_3: Sentence 1 describes a group of men working on streetcar rails. That would indicate that the group of men are workers.
premise_logic: exists e1 s1 x1 x2 x3.(on(e1,x3) & n_rail(x3) & a_streetcar(s1) & Theme(s1,x3) & Actor(e1,x1) & v_work(e1) & of(x1,x2) & n_man(x2) & n_group(x1))
hypothesis_logic: exists p1 x1 x2.(n_group(x1) & exists x3.((x1 = x3) & n_worker(x3)) & of(x1,x2) & n_man(x2))