Task: Coherence Classification
Input (English): Sentence 1: Gary needed extensive dental work. 
 Sentence 3: After researching, Gary found a cheaper alternative 
 Sentence 4:  Gary saw that dental work in Mexico was much cheaper that the US 
 Sentence 5:  Gary decided he would go to Mexico to get his dental work done 
 Given Sentence 2: Gary knew he could not afford the cost of the dental work.
Output (English): Yes