| Relationships | Role | Relationship Start | Relationship End |
| Column Affordable Master Llc | Parent | 9/17/2008 | 12/31/2010 |
| Column Gtc Middle Tier Iv Llc | Subsidary | 9/17/2008 | 12/31/2010 |
| Relationships | Role | Relationship Start | Relationship End |
| Column Affordable Master Llc | Parent | 9/17/2008 | 12/31/2010 |
| Column Gtc Middle Tier Iv Llc | Subsidary | 9/17/2008 | 12/31/2010 |