An elderly lady in a skirt walking up the stairs.
The elderly lady is driving
Driving would meant that the lady is sitting and traveling without moving her feet which would contradict her walking.
exists e1 s1 s2 x1 x2 x3 x4.(n_stair(x4) & a_topic(x1) & in(x1,x2) & a_up(s2) & Manner(e1,s2) & Theme(e1,x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_skirt(x2) & n_lady(x1) & a_elderly(s1) & Theme(s1,x1))
exists e1 s1 x1.(n_lady(x1) & a_elderly(s1) & Theme(s1,x1) & Actor(e1,x1) & v_drive(e1))