{HEAD ~ The present invention} relates to {TAIL ~ a control system} for an elevating device or transfer means 
relates to
{ HEAD ~ The present invention } relates to { TAIL ~ a control system } for an elevating device or transfer means
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH