Due to {HEAD ~ movement} of electrons, water in {TAIL ~ contact} with the semiconductor electrode is decomposed, so that oxygen is produced 
Due to { HEAD ~ movement } of electrons , water in { TAIL ~ contact } with the semiconductor electrode is decomposed , so that oxygen is produced
OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH