A woman is soldering a piece of metal as a man watches.
One person observes another person working on making an ice cream cake.
Soldering a piece of metal and making an ice cream cake simultaneously is impossible.
exists e1 p1 x1 x2 x3.(exists e2 x4.(Actor(e2,x4) & v_watch(e2) & n_man(x4)) & as(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_solder(e1) & of(x2,x3) & n_metal(x3) & n_piece(x2) & n_woman(x1))
exists e3 e2 e1 x1 x2 x3 x4 x5 x6 x7.(Theme(e3,x2) & Actor(e3,x1) & v_observe(e3) & on(e1,e2) & Theme(e2,x5) & Actor(e2,x4) & v_make(e2) & n_cake(x5) & of(x5,x7) & n_cream(x7) & of(x5,x6) & n_ice(x6) & Actor(e1,x3) & v_work(e1) & (x2 = x3) & n_person(x2) & -(x2 = x1) & n_person(x1) & n_person(x1) & card_eq_1(x1))