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+package Reaction;%0A%0A%0Aimport Pair.Pair;%0Aimport Pair.PairList;%0A%0Aimport java.util.ArrayList;%0A%0Apublic class Reaction  extends PairList%3CString, ArrayList%3CString%3E%3E %7B%0A%0A    public Reaction()%7B%0A        super();%0A    %7D%0A%0A    public String getUniqueId()%7B%0A        Pair reactant = get(%22UNIQUE-ID%22);%0A        return reactant != null ? reactant.getValue().toString() : null;%0A    %7D%0A%7D%0A

Add Reaction Class [Starts #111770958]