Two women and a man smile as they work together with some chemical equipment.
The people are working together with machinery equipment.
The equipment can't be chemical and machinery.
exists p1 s1 x1 x2 x3.(a_topic(s1) & subset_of(x2,s1) & exists e1 s2 x4 x5.(a_together(s2) & Manner(e1,s2) & with(e1,x4) & n_equipment(x4) & of(x4,x5) & n_chemical(x5) & Actor(e1,x1) & v_work(e1)) & n_thing(x1) & as(x2,p1) & n_smile(x2) & of(x2,x3) & n_man(x3) & subset_of(x1,s1) & n_woman(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(n_people(x1) & with(e1,x2) & n_equipment(x2) & of(x2,x3) & n_machinery(x3) & a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_work(e1))