{HEAD ~ The interior} of each of the toys includes {TAIL ~ a gyroscope}, which when operated creates considerable rotational momentum, tending to resist the movement of the toy by the user 
includes
{ HEAD ~ The interior } of each of the toys includes { TAIL ~ a gyroscope } , which when operated creates considerable rotational momentum , tending to resist the movement of the toy by the user
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH