story: Rita genuinely believed that there were forty-nine states in the USA. Her friends tried their hardest to talk some sense into her. Rita kept denying that Hawaii was a state. She insisted that it was a city. Her friends dropped it after a while, but it's still unbelievable.
 selected sentence: Rita kept denying that Hawaii was a state.
Rita denies that Hawaii is a state >Causes> Her friends feel(s) frustrated