A group of friends having diner together.
A lady is eating alone.
Friends can't be having dinner and eating alone at the same time.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & a_together(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x3) & v_have(e1) & n_diner(x4) & (x1 = x3) & of(x1,x2) & n_friend(x2) & n_group(x1))
exists e1 s1 x1.(a_alone(s1) & Manner(e1,s1) & Actor(e1,x1) & v_eat(e1) & n_lady(x1))