Notwithstanding the provisions of the preceding Article, if there is a considerably large amount of personal information an administrative entity holds that is subject to a request for disclosure, and there would be a risk that the performance of duties is considerably hindered if a decision on disclosure were made on all of those requests within sixty days from the date of a request for disclosure, it is sufficient for the administrative organ's head or administrative entity to make a decision on disclosure for a reasonable portion of the personal information the administrative entity holds for which disclosure has been requested within that period of time, and to make a decision on disclosure for the remaining personal information within a reasonable period of time. In this case, the administrative organ's head or administrative entity must notify the person requesting disclosure of the following matters in writing within the period of time prescribed in paragraph (1) of that Article: