Simplify the following text for a Grade 4 native English-speaking person.
Original: Hainanese chicken rice is often considered as the `` national dish '' of Singapore , and is often served at international expositions and global events abroad , and in Singaporean-run restaurants overseas . Hainanese chicken rice is also one of the few local dishes served on Singapore Airlines flights .
Simplified: Hainanese chicken rice is a dish created by the people of Hainan .