A crowd is watching a lady give a demonstration of KitchenAid products with the help of an overhead mirror.
People are in a supermarket.
Not all demonstrations are in a supermarket.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_help(x7) & with(e2,x7) & of(x7,x8) & n_mirror(x8) & a_overhead(s1) & Theme(s1,x8) & Theme(e2,x4) & Actor(e2,x1) & v_give(e2) & of(x4,x5) & n_product(x5) & of(x5,x6) & n_kitchenaid(x6) & n_demonstration(x4) & Theme(e1,x3) & Actor(e1,x2) & v_watch(e1) & n_lady(x3) & (x1 = x2) & n_crowd(x1))
exists p1 x1.(exists x2.(in(x1,x2) & n_supermarket(x2)) & n_people(x1))