a person lying outside reading a book during the day.
A student studies outside on a sunny day.
Not all person lying outside reading a book during day is on a sunny day
exists e1 e2 s1 x1 x2 x3 x4.(n_day(x4) & a_topic(x1) & for(e1,e2) & Theme(e2,x3) & Actor(e2,x2) & v_read(e2) & during(x3,x4) & n_book(x3) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x2) & v_lie(e1) & (x1 = x2) & n_person(x1))
exists s1 x1 x2 x3 x4.(a_topic(x1) & on(x3,x4) & n_day(x4) & a_sunny(s1) & Theme(s1,x4) & outside(x1,x3) & n_thing(x3) & n_study(x1) & of(x1,x2) & n_student(x2))