In {HEAD ~ a preferred embodiment}, {TAIL ~ the apparatus} a floating device however it does not have to be 
In { HEAD ~ a preferred embodiment } , { TAIL ~ the apparatus } a floating device however it does not have to be
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH