Question: what is name of the first episode of the season of American animated television series "SpongeBob SquarePants" which was aired on Nickelodeon from February 19, 2007 to July 19, 2009, and contained 20 episodes?
Sentence (from "Friend or Foe (SpongeBob SquarePants)"): Alexander, Cervas and Mitchell also function as storyboard directors.
Relevant evidence: No