Young lady either showing off her manicure or hitch hiking.
The lady has a manicure.
Sentence one doesn't know if the lady has a manicure or she is just hitch hiking.
exists e1 s1 s2 s3 x1 x2 x3.(a_topic(x1) & a_either(s3) & Manner(e1,s3) & a_off(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x2) & v_show(e1) & (n_manicure(x3) | exists x4.(n_hiking(x3) & of(x3,x4) & n_hitch(x4))) & of(x3,x1) & n_female(x1) & (x1 = x2) & n_lady(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_lady(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_manicure(x2))