Complex sentence: The incident is not the first time that PUP students burns and destroys chairs; in 2010, hundreds of agitated students walked out of the room and began throwing dilapidated chairs, tables, and examination papers from the main building to denounce a 2,000% tuition hike.
Split into simpler sentences: The incident is not the first time that PUP students burns and destroys chairs. The first incident was back in 2010, where hundreds of agitated students walked out of the room and began throwing dilapidated chairs, tables, and examination papers from the main building to denounce an allegedly 2,000% tuition hike.