Task: Coherence Classification
Input (English): Sentence 1: The elephant was new to the zoo. 
 Sentence 3: The zookeepers worked with him for months 
 Sentence 4:  Soon he was confident and happy 
 Sentence 5:  They introduced him to the other elephants and he was happy 
 Given Sentence 2: He was very scared and timid.
Output (English): Yes