a planetary gear that meshes with {HEAD ~ each} of {TAIL ~ the sun gear} and the ring gear, and 
of
a planetary gear that meshes with { HEAD ~ each } of { TAIL ~ the sun gear } and the ring gear , and
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH