A young girl walks quickly outside.
A young girl is walking quickly.
A girl could be walking quickly outside.
exists e1 p1 s1 x1.(exists s2.(r_quickly(s2) & Theme(s2,x1) & a_outside(s2)) & Topic(e1,p1) & Actor(e1,x1) & v_walk(e1) & n_girl(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 s2 x1.(a_quickly(s2) & Manner(e1,s2) & Actor(e1,x1) & v_walk(e1) & n_girl(x1) & a_young(s1) & Theme(s1,x1))