The two correct details that would be included in the middle of the plot diagram are:
- After listening to his story, Gortsby accuses the young man of lying because he cannot produce the cake of soap that forms part of his story.
- After Gortsby loans the young man money for a hotel room, the elderly gentleman returns to the bench to look for a lost cake of soap.
These events represent the rising action and climax of the plot, as they reveal the conflict and lead up to the resolution of the story.