instruction: How many series did Dance Mums air?
output: Two seasons, it was not commissioned for a third series.
input: Dance Mums with Jennifer Ellison is a British reality television series that made its debut on Lifetime on 20 October 2014. Created by Shiver Productions, it is set in Liverpool, England, at Jelli Studios and follows the early careers of children in dance and show business, as well as the participation of their mothers. It is a spin-off of the American TV series Dance Moms.
  
  The second series began airing on 12 October 2015, but the show was not commissioned for a third series.