Anchor: Chronic bronchitis is characterized by mucus in the lungs and a persistent wet cough for at least three months a year for several years in a row.
Entailed: A persistent moist cough for a minimum of 3 months a year, for several years in a row, can be a symptom of chronic bronchitis.
Contradiction: The only characterization that appears from chronic bronchitis is a large swelling in the sinuses. 
Contradiction: They have a terrible reputation.
Contradiction: I'm in school trying to finish a PhD thesis so I don't have a lot of spare time for watching TV.
Contradiction: They would never send me.
Contradiction: The city skyline was both similar and different to those he had seen before.