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: On July 4th, 2016 Alan and Fran will be married for 13years. Sentence 2: They did not have anything planned to celebrate the day. Sentence 3: Nor did they tell each other Happy Anniversary. Sentence 4: Neither of them seemed to think it was a special day to acknowledge. Sentence 5: Now they're both worried that their marriage might be in trouble.

Trouble in paradise?