Complex sentence: Yanuca Lailai was chosen as a quarantine station but houses on it could accommodate only 350 people but within days extra bures were constructed and the ships passengers transferred to the island.
Split into simpler sentences: Yanuca Lailai was chosen as a quarantine station but houses on it could accommodate only 350 people. Within days extra "bures" (Fijian houses) were constructed and the ship's passengers transferred to the island.