Give a stream of consciousness and then the final answer. The season consisted of 20 episodes, in which ten episodes aired in the summer of 2016, with the remaining ten episodes aired from April 2017. The season's premiere aired on June 21, 2016, on Freeform. Production and filming began in the end of March 2016, which was confirmed by showrunner I. Marlene King. The season premiere was written by I. Marlene King and directed by Ron Lagomarsino. King revealed the title of the premiere on Twitter on March 17, 2016. On August 29, 2016, it was confirmed that this would be the final season of the series.\n\nAnswer this question based on the passage: how many episodes of pretty little liars season 7b?
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This is the relevant information: The season consisted of 20 episodes, in which ten episodes aired in the summer of 2016, with the remaining ten episodes aired from April 2017.
So, the final answer is ten.
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