A group of men in red and black jackets waits on motorcycles.
A group of people are on the bus.
Motorcycles and bus are different vehicles.
exists s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & in(x2,x3) & on(x3,x5) & n_motorcycle(x5) & n_wait(x3) & of(x3,x4) & n_jacket(x4) & a_black(s2) & Theme(s2,x3) & a_red(s1) & Theme(s1,x3) & n_man(x2) & n_group(x1))
exists p1 x1 x2 x3.(n_bus(x3) & on(x1,x3) & of(x1,x2) & n_people(x2) & n_group(x1))