The second stage consists of the actual delivery of the puppies. The third stage is passing of the placenta. The afterbirth might pass with each individual puppy, usually within 15 minutes of delivery. If the mother has a few puppies in rapid succession, those placentas may come out en masse.
Comedies have also been classified in various subgenres, such as romantic comedy, crime/caper comedy, sports comedy, teen or coming-of-age comedy, social-class comedy, military comedy, fish-out-of-water comedy, and gross-out comedy.
Comedies were one of the two original play types of Ancient Greece, along with tragedies. An example of a comedy would be William Shakespeare 's play  A Midsummer Night's Dream , or for a more modern example the skits from  Saturday Night Live .