premise: One man watching another man operate heavy machinery doing road construction.
hypothesis: A man watches another do construction work.
explanation_1: A man is looking onto the first man operating machinery while doing road construction.
explanation_2: One means A
explanation_3: The man doing construction work has to operate heavy machinery.
premise_logic: exists e2 e3 e1 s1 x1 x2 x3 x4 x5 x6.(for(e2,e3) & Theme(e3,x5) & Actor(e3,x1) & v_do(e3) & n_construction(x5) & of(x5,x6) & n_road(x6) & Theme(e2,x4) & Actor(e2,x1) & v_operate(e2) & n_machinery(x4) & a_heavy(s1) & Theme(s1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_watch(e1) & n_man(x3) & -(x3 = x1) & n_man(x1) & n_man(x1) & (x1 = x2) & card_eq_1(x1))
hypothesis_logic: exists e2 e1 x1 x2 x3 x4 x5.(Theme(e2,x2) & Actor(e2,x1) & v_watch(e2) & Theme(e1,x4) & Actor(e1,x3) & v_do(e1) & n_work(x4) & of(x4,x5) & n_construction(x5) & (x2 = x3) & n_thing(x2) & n_man(x1))