premise: A group of constructions workers lifting a bathtub.
hypothesis: Nobody is working
explanation_1: workers lifting a bathtub counts as work. The workers exist, they are not nobody
explanation_2: A group of construction workers are not nobody
explanation_3: Either people working or nobody is working.
premise_logic: exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e1,x5) & Actor(e1,x4) & v_lift(e1) & n_bathtub(x5) & (x1 = x4) & of(x1,x2) & n_worker(x2) & of(x2,x3) & n_construction(x3) & n_group(x1))
hypothesis_logic: -exists e1 x1.(Actor(e1,x1) & v_work(e1) & n_person(x1))