A man with a green and black jacket and white helmet rides a motorbike in front of a crowd.
A man with a green and black jacket and white helmet doesn't ride a motorbike
in sentence one the man rides a motorbike but in sentence two he doesn't ride a motorbike
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6.(Theme(e1,x4) & Actor(e1,x1) & v_ride(e1) & in(x4,x5) & of(x5,x6) & n_crowd(x6) & n_front(x5) & n_motorbike(x4) & with(x1,x2) & n_helmet(x2) & a_white(s3) & Theme(s3,x2) & of(x2,x3) & n_jacket(x3) & a_black(s2) & Theme(s2,x2) & a_green(s1) & Theme(s1,x2) & n_man(x1))
exists s1 s2 s3 x1 x2 x3.(-exists e1 x4.(Theme(e1,x4) & Actor(e1,x1) & v_ride(e1) & n_motorbike(x4)) & with(x1,x2) & n_helmet(x2) & a_white(s3) & Theme(s3,x2) & of(x2,x3) & n_jacket(x3) & a_black(s2) & Theme(s2,x2) & a_green(s1) & Theme(s1,x2) & n_man(x1))