whereby {HEAD ~ a signal} is transmitted from said first liquid container to said second liquid container by {TAIL ~ way} of the liquid, and 
is transmitted by
whereby { HEAD ~ a signal } is transmitted from said first liquid container to said second liquid container by { TAIL ~ way } of the liquid , and
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH