Task: Coherence Classification
Input (English): Sentence 1: Ivan was from the Soviet Union. 
 Sentence 3: He tore a chunk off himself 
 Sentence 4:  And kept the brick as a souvenir 
 Sentence 5:  He eventually gave it to his grandson 
 Option 1: He was born after the Berlin Wall came down. 
 Option 2: He was there when the Berlin Wall came down.
Output (English): Option 2