Instructions: 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.
Input: Sentence1: Lea was on a vacation in Scotland. Sentence2: She decided to try to see the Loch Ness Monster. Sentence3: She spent almost a full day watching the lake. Sentence4: She saw all kinds of boaters and tourists. Sentence5: But she did not see any monsters at all!
Output:
Loc ness monster, Lea, Boaters, Tourists