- | 1.0 0.25 1.5
- | 1.0 0.25 x
- foo - - 1.0 2.0 - 3.0 4.0
| - - 1.0 2.0 - 3.0 4.0 x
| - hello - 5.0 4.0 - bar | 3.0 2.0