Two men in bright yellow suits and wearing hearing protection are operating a yellow and black machine.
Two men are construction workers.
Not all men with hearing protection are construction workers.
exists e2 e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8.(Theme(e2,x6) & Actor(e2,x1) & v_operate(e2) & n_machine(x8) & a_black(s3) & Theme(s3,x8) & n_yellow(x7) & subset_of(x8,x6) & subset_of(x7,x6) & in(x1,x2) & n_protection(x4) & of(x4,x5) & n_hearing(x5) & Actor(e1,x4) & v_wear(e1) & n_suit(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_yellow(s2) & Theme(s2,x2) & a_bright(s1) & Theme(s1,x2) & n_man(x1) & card_eq_2(x1))
exists p1 x1.(exists x2 x3.((x1 = x2) & n_worker(x2) & of(x2,x3) & n_construction(x3)) & n_man(x1) & card_eq_2(x1))