Task: Coherence Classification
Input (English): Sentence 1: My air conditioner was behaving weird. 
 Sentence 3: I went to the store and bought a new filter 
 Sentence 4:  I brought the filter home and installed it 
 Sentence 5:  My AC unit began to work normally again 
 Given Sentence 2: I checked it out and saw that the filter was dirty.
Output (English): Yes