Part 1. Definition
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.
Part 2. Example
Sentence1: My dog was bored. Sentence2: I was working all day so I couldn't spend time with him. Sentence3: When I finished work I decided to play with my dog. Sentence4: He was so happy to finally have some fun! Sentence5: Alas, he fell sick and died.
Answer: I (myself), Dog
Explanation: There is only two characters in given story, i.e., I (myself) and dog.
Part 3. Exercise
Sentence1: The couple took a romantic trip to Ireland. Sentence2: They saw some amazing castles on cliffs. Sentence3: They toured the most historic castles that were open. Sentence4: The took photos in each place to remember it. Sentence5: The castles would hold a special place in their hearts.
Answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The couple