Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Episode # | The Wørd | Guest | Introductory phrase | Original airdate | Production code |
| --- | --- | --- | --- | --- | --- |
| 725.0 | "P.R.-mageddon" | Mark Frauenfelder | None | June 8 | 6073.0 |
| 726.0 | "None" | Michael Oren , Sam Nunn | None | June 9 | 6074.0 |
| 727.0 | "None" | Marc Fisher , Mark Starr , Alan Bean | None | June 10 | 6075.0 |
| 731.0 | "None" | Bob Inglis , David Mamet | None | June 17 | 6079.0 |
| 732.0 | "None" | Steve Lindsey , Wes Moore | None | June 21 | 6080.0 |
| 733.0 | "None" | Gloria Steinem | None | June 22 | 6081.0 |
| 736.0 | "None" | Michael Hastings , John Waters | None | June 28 | 6084.0 |
Question:
Who was the guest on the episode where The Word was "P.R.-mageddon"?
Answer:
Mark Frauenfelder