{HEAD ~ A suction nozzle} picks up {TAIL ~ the spent solution} together with loosened dirt and grime 
picks up
{ HEAD ~ A suction nozzle } picks up { TAIL ~ the spent solution } together with loosened dirt and grime
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH