Musicians at work; one playing the drums and the other on guitar.
The men were eating.
One can not be eating and playing the drums simultaneously.
exists e1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_other(x8) & n_drum(x7) & a_topic(x1) & at(x1,x2) & subset_of(x4,x2) & on(e1,x9) & n_guitar(x9) & Theme(e1,x6) & Actor(e1,x5) & v_play(e1) & subset_of(x8,x6) & subset_of(x7,x6) & (x4 = x5) & n_thing(x4) & card_eq_1(x4) & subset_of(x3,x2) & n_work(x3) & n_musician(x1))
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_eat(e1))