Two lovers walking on the street.
man sits alone
one is about two people while the other is about one man
exists e1 x1 x2 x3.(n_street(x3) & a_topic(x1) & on(e1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_lover(x1) & card_eq_2(x1))
exists e1 s1 x1.(a_alone(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_man(x1))