Children play in a pool while adults look on.
Children on summer vacation are cooling off.
playing in a pool while adults look on does not imply the Children are on summer vacation.
(x)
exists e1 s1 x1 x2 x3.(a_off(s1) & Manner(e1,s1) & Actor(e1,x1) & v_cool(e1) & on(x1,x2) & n_vacation(x2) & of(x2,x3) & n_summer(x3) & n_child(x1))