What is the rising action in the lie by Kurt Vonnegut Jr?

In "The Lie" by Kurt Vonnegut Jr., the rising action is centered around the protagonist, Dr. Adams, as he tries to protect his friend, Lionel. As the story unfolds, Dr. Adams becomes entangled in a web of lies to cover up Lionel's affair, leading to increasingly complex and morally compromising situations. The tension builds as Dr. Adams grApples with the consequences of his actions and struggles to maintain the facade of the lie.