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:
| Rank | Group | Name | Nationality | Mark |
| --- | --- | --- | --- | --- |
| 1 | B | Brittney Reese | United States | 6.87 |
| 2 | A | Maurren Higa Maggi | Brazil | 6.79 |
| 3 | B | Tatyana Lebedeva | Russia | 6.70 |
| 4 | A | Carolina Klüft | Sweden | 6.70 |
| 5 | A | Grace Upshaw | United States | 6.68 |
| 6 | A | Oksana Udmurtova | Russia | 6.63 |
| 7 | B | Keila Costa | Brazil | 6.62 |
| 8 | A | Tabia Charles | Canada | 6.61 |
| 9 | A | Funmi Jimoh | United States | 6.61 |
| 10 | B | Jade Johnson | Great Britain | 6.61 |
| 11 | A | Chelsea Hammond | Jamaica | 6.60 |
| 12 | B | Blessing Okagbare | Nigeria | 6.59 |
| 13 | B | Tatyana Kotova | Russia | 6.57 |
| 14 | A | Hrysopiyí Devetzí | Greece | 6.57 |
| 15 | B | Concepción Montaner | Spain | 6.53 |
| 16 | B | Bronwyn Thompson | Australia | 6.53 |
| 17 | A | Yargelis Savigne | Cuba | 6.49 |
| 18 | B | Iryna Charnushenka-Stasiuk | Belarus | 6.48 |
| 19 | B | Kumiko Ikeda | Japan | 6.47 |
| 20 | A | Denisa Ščerbová | Czech Republic | 6.46 |
| 21 | A | Patricia Sylvester | Grenada | 6.44 |
| 22 | B | Viorica Țigău | Romania | 6.44 |
| 23 | A | Viktoriya Rybalko | Ukraine | 6.43 |
| 24 | A | Karin Melis Mey | Turkey | 6.42 |
| 25 | B | Ruky Abdulai | Canada | 6.41 |
| 26 | A | Nina Kolarič | Slovenia | 6.40 |
| 27 | B | Ksenija Balta | Estonia | 6.38 |
| 28 | B | Soon-ok Jung | South Korea | 6.33 |
| 29 | B | Olga Rypakova | Kazakhstan | 6.30 |
| 30 | B | Ivana Španović | Serbia | 6.30 |
| 31 | A | Naide Gomes | Portugal | 6.29 |
| 32 | A | Volha Sergeenka | Belarus | 6.25 |
| 33 | B | Oleksandra Stadnyuk | Ukraine | 6.19 |
| 34 | B | Marestella Torres | Philippines | 6.17 |
| 35 | A | Pamela Mouele-Mboussi | Congo | 6.06 |
| 36 | B | Arantxa King | Bermuda | 6.01 |
| 37 | A | Rhonda Watkins | Trinidad and Tobago | 5.88 |
| 38 | A | Tricia Flores | Belize | 5.25 |
| N/A | B | Anju Bobby George | India | NM |
| N/A | B | Jackie Edwards | Bahamas | NM |
| N/A | A | Jana Velďáková | Slovakia | NM |
| N/A | A | Lyudmyla Blonska | Ukraine | DSQ |
Question:
What is the mark for Grenada in group A?
Answer:
6.44