{HEAD ~ Preferred triggering events} include light of a suitable wavelength and intensity to activate {TAIL ~ the microorganism neutralizer} or a pH sufficient to activate the microorganism neutralizer 
{ HEAD ~ Preferred triggering events } include light of a suitable wavelength and intensity to activate { TAIL ~ the microorganism neutralizer } or a pH sufficient to activate the microorganism neutralizer
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH