A young boy sits while eating.
A young boy is eating
Sits while eating and eating are the same thing.
exists e2 e1 s1 x1.(while(e1,e2) & Actor(e2,x1) & v_eat(e2) & Actor(e1,x1) & v_sit(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1.(Actor(e1,x1) & v_eat(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))