Definition: In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.
Input: Sentence 1: Scientists have been working at Los Alamos on a new bomb. Sentence 2: The theory was easy to develop. Sentence 3: They decided on a final design. Sentence 4: They determined what material would be needed. Sentence 5: Now they wait on the material for their gadget to be produced.

The Design is Final.