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