Complex sentence: The Angono Petroglyphs (Filipino: "Mga Petroglipo ng Angono") is the oldest known work of art in the Philippines located in the province of Rizal.
Split into simpler sentences: The Angono Petroglyphs (Filipino: "Mga Petroglipo ng Angono") is the oldest known work of art in the Philippines. The site is located in the province of Rizal.