An artist is painting at an art fair while a woman and a man talk in the background and several people walk by.
The artists is painting a big fat man
an artist is painting at an art fair. he cannot be more than one person. painting at the fair does not mean the artist  has to paint only one person.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(n_background(x10) & while(e2,x6) & subset_of(x8,x6) & in(x8,x10) & n_talk(x8) & of(x8,x9) & n_man(x9) & subset_of(x7,x6) & n_woman(x7) & at(e2,x4) & n_fair(x4) & of(x4,x5) & n_art(x5) & Theme(e2,x2) & Actor(e2,x1) & v_paint(e2) & a_by(s2) & Manner(e1,s2) & Theme(e1,x3) & v_walk(e1) & (x2 = x3) & n_people(x2) & a_several(s1) & Theme(s1,x2) & n_artist(x1))
exists e1 s1 s2 x1 x2.(n_artist(x1) & Theme(e1,x2) & Actor(e1,x1) & v_paint(e1) & n_man(x2) & a_fat(s2) & Theme(s2,x2) & a_big(s1) & Theme(s1,x2))