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:
| Home team | Home team score | Away team | Away team score | Ground | Date | Crowd |
| --- | --- | --- | --- | --- | --- | --- |
| Fremantle | 8.9 (57) | Melbourne | 14.14 (98) | Subiaco Oval | Saturday, 17 February | 11392.0 |
| Hawthorn | 13.11 (89) | Richmond | 6.9 (45) | York Park | Sunday, 18 February | 13958.0 |
| Richmond | 14.13 (97) | Melbourne | 9.11 (65) | Optus Oval | Sunday, 25 February | 7875.0 |
| Fremantle | 10.12 (72) | Hawthorn | 5.16 (46) | Subiaco Oval | Sunday, 25 February | 9193.0 |
| Richmond | 22.13 (145) | Fremantle | 7.9 (51) | Optus Oval | Sunday, 4 March | 4391.0 |
| Hawthorn | 21.17 (143) | Melbourne | 6.7 (43) | Colonial Stadium | Sunday, 4 March | 9813.0 |
Question:
What is Away Team Score, when Ground is Optus Oval, and when Away Team is Fremantle?
Answer:
7.9 (51)