Task: Question Answering
Input (English): Question: In the valuation of a strong base with a strong acid the pH of the equivalence point: 
 Options:  <1> It depends on the strong base that is valued. <2> It is determined by the excess OH ̄ of the solution. <3> It depends on the strong acid used as a titrant. <4> It is determined by the dissociation of water. <5> It is determined by the excess H + of the solution.
Output (English): 4