premise: two men one in a safety bucket and the other on the roof are fixing a sign.
hypothesis: Every person here is working at a computer.
explanation_1: Two men refers to two males, every person usually refers to more than two humans, male and/or female. Either the group is fixing a sign or they are working a computer. They cannot do both simultaneously, logically speaking.
premise_logic: exists e1 x1 x2 x3 x4 x5 x6 x7.(n_roof(x6) & n_other(x5) & Theme(e1,x7) & Actor(e1,x1) & v_fix(e1) & n_sign(x7) & on(x1,x6) & in(x1,x2) & subset_of(x5,x2) & subset_of(x3,x2) & n_bucket(x3) & of(x3,x4) & n_safety(x4) & n_man(x1) & card_eq_3(x1) & card_eq_3(x1))
hypothesis_logic: all x1.(n_person(x1) -> exists e1 x2.(at(e1,x2) & n_computer(x2) & Actor(e1,x1) & v_work(e1) & r_here(x1)))
premise_sim: exists e1 x1 x2 x3 x4 x5 x6 x7.(v_fix(e1) & subset_of(x5,x2) & subset_of(x3,x2) & on(x1,x6) & of(x3,x4) & n_sign(x7) & n_safety(x4) & n_roof(x6) & n_other(x5) & n_man(x1) & n_bucket(x3) & in(x1,x2) & card_eq_3(x1) & Theme(e1,x7) & Actor(e1,x1))
hypothesis_sim: all x1.(exists e1 x2.(v_work(e1) & r_here(x1) & n_computer(x2) & at(e1,x2) & Actor(e1,x1)) | -n_person(x1))