Sentence 1: Kevin was reading a reviews for shoes he wanted. 
 Sentence 3: But Kevin really wanted the shoes 
 Sentence 4:  After he bought them, they became his favorite pair 
 Sentence 5:  But the shoelaces ended up breaking while running 
 Option 1: And one reviewer complained about the shoelaces, so Kevin bought new stronger ones. 
 Option 2: And one reviewer complained about the shoelaces.