A woman in sunglasses is brushing her hair back.
A lady is blowing her hair with a hairdryer.
Brushing hair involves a brush while blowing involves a hair dryer, these cannot be done simultaneously.
exists e1 s1 x1 x2 x3.(a_back(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_brush(e1) & n_hair(x3) & of(x3,x1) & n_female(x1) & in(x1,x2) & n_sunglass(x2) & n_woman(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_blow(e1) & with(x2,x3) & n_hairdryer(x3) & n_hair(x2) & of(x2,x1) & n_female(x1) & n_lady(x1))