A pad is placed on the turntable, where {HEAD ~ the turntable} rotates in {TAIL ~ a first direction} 
rotates in
A pad is placed on the turntable , where { HEAD ~ the turntable } rotates in { TAIL ~ a first direction }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL