In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.

Sentence1: Rayana started dating Jake when she 17. Sentence2: They were so in love and married when she turned 18. Sentence3: Shortly after they were married, they discovered Jake had a newborn. Sentence4: Jake's ex-girlfriend kept her pregnancy a secret the whole time. Sentence5: Now Rayana is a step mom at just 18 years old.
Newborn, Jake's ex, Ex girlfriend, Jake, Rayana