| http://www.w3.org/ns/prov#value | - At the same time, hot Water is introduced into the mixing valve .34 through a valve-controlled line 35, and by proper setting of the metering mixing valve 34 is mixed `with carbonated strong coffee liquid in such proportion as to give a mixture that upon discharge from the metering valve 34 into an extension 33a of the line 33, is of suitable or conventional concentration for consumption as a coff
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