Complex sentence: In order to celebrate 50 year Canisius, a motor rally in which Porsija helped was held on 17 July 1977 and a bazaar was held to help schools in Central Java.
Split into simpler sentences: In order to celebrate 50 year Canisius, a motor rally in which Porsija helped was held on 17 July 1977. Besides, a bazaar was held to help schools in Central Java.