Instructions: Given a text, write a compressed version of it in a single sentence.
Input: Tinian Island had been captured from Japan, and the Seabees, the construction arm of the Navy, had built two large airfields. The 509th took North Field and stayed in relative isolation from other B - 29 units on the island.
Output:
Tinian Island had been captured from Japan, and the Seabees, construction arm of the Navy, built two large airfields. The 509th took North Field in isolation.