A man wearing a plaid shirt is painting on a large sheet.
A woman drinks a ginger ale.
The pieces of information that contradict each other are woman drinking ginger ale as against man painting in the first sentence.
exists e1 p1 s1 s2 x1 x2 x3 x4.(on(p1,x4) & n_sheet(x4) & a_large(s2) & Theme(s2,x4) & exists x5.((x1 = x5) & n_paint(x5)) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shirt(x3) & a_plaid(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
all x2 x1.((n_ale(x1) & of(x1,x2) & n_ginger(x2)) -> exists x3 x4.(a_topic(x3) & for(x3,x1) & n_drink(x3) & of(x3,x4) & n_woman(x4)))