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| lvl1 | lvl2 | lvl3 | lvl4 | lvl5 |
|---|---|---|---|---|
| chris | null | null | null | null |
| ken | scott | chris | null | null |
| kevin | lisa | ken | scott | chris |
| lisa | ken | scott | chris | null |
| mike | lisa | ken | scott | chris |
| scott | chris | null | null | null |
| emp | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| chris | null | null | null | null | |
| ken | scott | chris | null | null | null |
| kevin | lisa | ken | scott | chris | null |
| lisa | ken | scott | chris | null | null |
| mike | lisa | ken | scott | chris | null |
| scott | chris | null | null | null | null |