Task: Coherence Classification
Input (English): Sentence 1: My friend Tony bought a drone. 
 Sentence 3: He uses it to take scenic photos 
 Sentence 4:  Once he posted a FB photo close to the airport 
 Sentence 5:  The airport asked him to take it down 
 Option 1: He got it for next to nothing because the camera on it was broken. 
 Option 2: It cost $1900.
Output (English): Option 2