Task: Coherence Classification
Input (English): Sentence 1: The cavern sat alone on the edge of a mountain. 
 Sentence 3: One day it had a sign out front saying to come in 
 Sentence 4:  Joe took it as a sign and climbed inside 
 Sentence 5:  Once there he found it was filled with gold and he died a happy man 
 Given Sentence 2: Joe had always seen it on his walks but was too afraid to visit it.
Output (English): Yes