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 | Venue | Crowd | Date |
| --- | --- | --- | --- | --- | --- | --- |
| Richmond | 23.15 (153) | St Kilda | 11.15 (81) | MCG | 44348.0 | 29 July 1972 |
| North Melbourne | 12.15 (87) | South Melbourne | 11.12 (78) | Arden Street Oval | 6191.0 | 29 July 1972 |
| Essendon | 21.14 (140) | Melbourne | 14.11 (95) | Windy Hill | 16318.0 | 29 July 1972 |
| Hawthorn | 11.16 (82) | Collingwood | 19.13 (127) | Glenferrie Oval | 24135.0 | 29 July 1972 |
| Geelong | 9.13 (67) | Carlton | 17.17 (119) | Kardinia Park | 24797.0 | 29 July 1972 |
| Fitzroy | 15.12 (102) | Footscray | 11.15 (81) | VFL Park | 9750.0 | 29 July 1972 |
Question:
When collingwood was the away team, what was the home team?
Answer:
Hawthorn