A group of people in jeans and white shirts are bent over a piece of wood.
They were not happy.
Just because the group is bending over a piece of wood does not imply that they are not happy.
exists s1 s2 x1 x2 x3 x4 x5 x6 x7.(over(s2,x6) & of(x6,x7) & n_wood(x7) & n_piece(x6) & Theme(s2,x1) & a_bent(s2) & of(x1,x2) & subset_of(x5,x2) & n_shirt(x5) & a_white(s1) & Theme(s1,x5) & subset_of(x3,x2) & in(x3,x4) & n_jeans(x4) & n_people(x3) & n_group(x1))
exists x1.(n_thing(x1) & -exists s1.(Theme(s1,x1) & a_happy(s1)))