Task: Coherence Classification
Input (English): Sentence 1: A barbarian was walking through the woods one day. 
 Sentence 3: He ran home and warned his fellow tribesman 
 Sentence 4:  They ran over to the foreigners and engaged in combat 
 Sentence 5:  The other tribe fled and the barbarian and his tribe went home 
 Option 1: He noticed a foreign tribe by his tribe's river. 
 Option 2: He saw a fellow tradesman walking.
Output (English): Option 1