A man in a red and black suit is riding on a white motorcycle.
A man in red and black is riding a motorcycle with the group.
Riding a motorcycle does not imply with a group.
exists e1 s1 s2 s3 x1 x2 x3.(on(e1,x3) & n_motorcycle(x3) & a_white(s3) & Theme(s3,x3) & Actor(e1,x1) & v_ride(e1) & in(x1,x2) & n_suit(x2) & a_black(s2) & Theme(s2,x2) & a_red(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(n_group(x4) & Theme(e1,x3) & Actor(e1,x1) & v_ride(e1) & with(x3,x4) & n_motorcycle(x3) & in(x1,x2) & n_black(x2) & a_red(s1) & Theme(s1,x2) & n_man(x1))