Definition: In this task, you're given the title of a story consisting of five sentences, numbered 1 through 5. Your job is to determine which two sentences need to be swapped sentences in order to make a story that makes complete sense and is befittingly titled. Indicate your answer using the numbers of the two sentences in order, such as '34' or '25'. The first digit refers to the sentence which should come first in the story.
Input: Title: Animal Instinct. Sentence 1: Then they saw two zebras in an open field mating in front of everyone! Sentence 2: She had never been to any kind of wildlife preserve. Sentence 3: Tom felt proud as he showed her the beautiful animals. Sentence 4: Tom took his girlfriend to the zoo. Sentence 5: Tom never took a girl to a zoo again.
Output:
14