Complex sentence: Solomon Islanders Buiki Gasa and Aaron Kumana were portrayed as mute random natives, when in fact they were dispatched by the coastwatcher to find them, and it was Gasa's idea to get a coconut to send a message.
Split into simpler sentences: Solomon Islanders Buiki Gasa and Aaron Kumana were portrayed as mute random natives, when in fact they were dispatched by the coastwatcher to find them. It was Gasa's idea to get a coconut to send a message.