A shoe shiner waits for customers.
a person shining shoes waiting for a new customer to come
"person shining shoes waiting for a new customer" is a way of rephrasing "shoe shiner waits for customers"
exists x1 x2 x3 x4.(a_topic(x1) & for(x1,x4) & n_customer(x4) & n_wait(x1) & of(x1,x3) & n_shiner(x3) & of(x1,x2) & n_shoe(x2))
exists e1 e2 p1 s1 x1 x2 x3 x4.(a_topic(x1) & for(e1,e2) & Topic(e2,p1) & exists e3.(Actor(e3,x2) & v_come(e3)) & for(e2,x4) & n_customer(x4) & a_new(s1) & Theme(s1,x4) & Actor(e2,x2) & v_wait(e2) & Theme(e1,x3) & Actor(e1,x2) & v_shine(e1) & n_shoe(x3) & (x1 = x2) & n_person(x1))