Musicians playing in front of a shop.
Some people are eating outside the restaurant.
Not all people are musicians. One who is eating is not necessarily playing.
exists e1 x1 x2 x3.(ne_nam_musicians(x1) & in(e1,x2) & of(x2,x3) & n_shop(x3) & n_front(x2) & Actor(e1,x1) & v_play(e1))
exists e1 x1 x2.(n_restaurant(x2) & outside(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_people(x1))