Two individuals are working a food booth.
Two people working at food booth
Two individuals are the same as two individuals  working at a food booth,
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_work(e1) & n_booth(x2) & of(x2,x3) & n_food(x3) & n_individual(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & at(e1,x3) & n_booth(x3) & of(x3,x4) & n_food(x4) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))