However it has now been shown that {HEAD ~ useful antibacterial properties} can be obtained from hard surface cleaning compositions containing both quaternary ammonium compounds and abrasive particles, in particular particles of {TAIL ~ a soluble abrasive material} 
However it has now been shown that { HEAD ~ useful antibacterial properties } can be obtained from hard surface cleaning compositions containing both quaternary ammonium compounds and abrasive particles , in particular particles of { TAIL ~ a soluble abrasive material }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL