A fruit vendor sits alone in the dark.
He is playing the violin.
A fruit vendor does not play the violin.
exists e1 s1 x1 x2 x3.(n_dark(x3) & in(e1,x3) & a_alone(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_vendor(x1) & of(x1,x2) & n_fruit(x2))
exists e1 x1 x2.(n_violin(x2) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1))