Guy in blue shirt dances with girl in white shirt.
Guy and girl dancing at prom
A guy and girl dancing are not assumed to be at prom.
exists s1 s2 s3 x1 x2 x3 x4.(ne_nam_guy(s1) & a_topic(s1) & in(s1,x1) & with(x1,x3) & in(x3,x4) & n_shirt(x4) & a_white(s3) & Theme(s3,x4) & n_girl(x3) & n_dance(x1) & of(x1,x2) & n_shirt(x2) & a_blue(s2) & Theme(s2,x1))
exists s1 x1 x2 x3 x4.(ne_nam_guy(x1) & a_topic(s1) & subset_of(x2,s1) & at(x2,x4) & n_prom(x4) & n_dancing(x2) & of(x2,x3) & n_girl(x3) & subset_of(x1,s1))