sentences:  On September 21, 1997, a church-organized rally brought in an estimated half a million people to Rizal Park.Furthermore, on September 23, 1997, the advocates suffered a setback when the Supreme Court, under Chief Justice Andres Narvasa, narrowly dismissed a petition filed by the People's Initiative for Reform, Modernization and Action (PIRMA), which sought to amend the Constitution through a signature campaign or People's Initiative.The Supreme Court dismissed the petition on the grounds that the People's Initiative mode does not have enough enabling law for the proposed revisions or amendments in the 1987 constitution.