A woman with a white shirt and ponytail walks by.
A woman sits down with her grandmother, discussing the times of old.
A woman who walks by can't be a woman who sits down at the same time.
exists e1 s1 s2 x1 x2 x3 x4.(a_by(s2) & Manner(e1,s2) & Actor(e1,x1) & v_walk(e1) & with(x1,x2) & n_ponytail(x4) & n_shirt(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_white(s1) & Theme(s1,x2) & n_woman(x1))
exists e1 e2 s1 x1 x2 x3 x4.(n_time(x3) & for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_discuss(e2) & of(x3,x4) & n_old(x4) & with(e1,x2) & n_grandmother(x2) & of(x2,x1) & n_female(x1) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_woman(x1))