Assertion: phosphoric acid | /r/CapableOf | serve particular function
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Source sentences:
text: On its website, Coca-Cola says that phosphoric acid is added to cola beverages to "​​​help provide their characteristic tangy taste​​​", while the Coca-Cola-funded Beverage Institute for Health & Wellness​​ notes that acidulants "which include phosphoric acid and citric acid​" can "help to reduce the growth of microorganisms",​ although it doesn't say whether phosphoric acid serves this particular function in beverages such as Coca-Cola.