Task: Question Answering
Input (English): Background Paragraph: Enzymes are proteins that increase the rate of chemical reactions by reducing the amount of activation energy needed for reactants to start reacting. Enzymes are synthesized in the cells that need them, based on instructions encoded in the cell’s DNA. Enzymes aren’t changed or used up in the reactions they catalyze, so they can be used to speed up the same reaction over and over again. Enzymes are highly specific for certain chemical reactions, so they are very effective. A reaction that would take years to occur without its enzyme might occur in a split second with the enzyme. Enzymes are also very efficient, so waste products rarely form. 
Story: Students in a high school chemistry class are conducting an experiment where they perform an acid-base reaction with various conditions. Half the students, called the non-enzyme half, perform the reaction by simply mixing the chemicals together and waiting. The other half of the students, called the enzyme-half, mix the chemicals together, then add an enzyme specialized for this specific reaction. 
Question: Which group will have to wait less for the reactions to finish?
Output (English): the enzyme-half.