A girl is singing while jumping in the air.
A doctor is doing surgery on a man.
There is a reference of a girl singing and no mention of doctor doing surgery.
exists e2 e1 x1 x2.(n_air(x2) & while(e1,e2) & in(e2,x2) & Actor(e2,x1) & v_jump(e2) & Actor(e1,x1) & v_sing(e1) & n_girl(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_man(x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_surgery(x2) & n_doctor(x1))