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:
| Series # | Season # | Title | Written by | Original air date | U.S. viewers (millions) |
| --- | --- | --- | --- | --- | --- |
| 68.0 | 1.0 | "Bahamian Rhapsody"(Part 2) | Kari Lizer & Jeff Astrof | September23,2009 | 7.17 |
| 69.0 | 2.0 | "Burning Love" | Sherry Bilsing-Graham & Ellen Kreamer | September30,2009 | 6.65 |
| 70.0 | 3.0 | "The Mole" | Jack Burditt | October7,2009 | 6.86 |
| 71.0 | 4.0 | "For Love or Money" | Allan Rice | October14,2009 | 6.99 |
| 72.0 | 5.0 | "Doctor Little Man" | Frank Pines | October21,2009 | 6.58 |
| 73.0 | 6.0 | "The Curious Case of Britney B" | Matt Goldman | November4,2009 | 6.68 |
| 74.0 | 7.0 | "Nuts" | Amy Iglow | November11,2009 | 7.19 |
| 75.0 | 8.0 | "Love Means Never Having to Say You're Crazy" | Jeff Astrof | November18,2009 | 7.27 |
| 76.0 | 9.0 | "I Love Woo, I Hate You" | Jack Burditt | November25,2009 | 7.01 |
| 77.0 | 10.0 | "Old Christine Meets Young Frankenstein" | Frank Pines | December9,2009 | 7.49 |
| 78.0 | 11.0 | "It's Beginning to Stink a Lot Like Christmas" | Sherry Bilsing-Graham & Ellen Kreamer | December16,2009 | 7.64 |
| 79.0 | 12.0 | "Whale of a Tale" | Sherry Bilsing-Graham & Ellen Kreamer | January13,2010 | 5.97 |
| 80.0 | 13.0 | "Truth or Dare" | Jack Burditt | January20,2010 | 6.21 |
| 81.0 | 14.0 | "A Family Unfair" | Jeff Astrof | February10,2010 | 8.10 |
| 82.0 | 15.0 | "Sweet Charity" | Frank Pines | March3,2010 | 5.56 |
| 83.0 | 16.0 | "Subway, Somehow" | Amy Iglow & Allan Rice | March10,2010 | 7.67 |
| 84.0 | 17.0 | "Up In The Airport" | Sherry Bilsing-Graham & Ellen Kreamer | April7,2010 | 5.97 |
| 85.0 | 18.0 | "Revenge Makeover" | Tricia O'Kelley & Alex Kapp Horner | April14,2010 | 6.17 |
| 86.0 | 19.0 | "I Love What You Do For Me" | Jack Burditt | April21,2010 | 5.20 |
| 87.0 | 20.0 | "Scream" | Jeff Astrof & Matt Goldman | May5,2010 | 6.29 |
Question:
who were the writers of the episode that had 5.56 millions of north american viewers? 
Answer:
Frank Pines