| Value | Category |
|---|---|
| 00 | No spouse present |
| 01 | Rule 1: strong relationship pairing, couple adjacent |
| 02 | Rule 2: strong relationship pairing, couple not adjacent |
| 03 | Rule 3: weak relationship pairing, couple adjacent |
| 04 | Rule 4: weak relationship pairing, couple not adjacent |
| 05 | Rule 5: weak consensual union pairings |
| 06 | Rule 6: sample-specific rules (usually child-to-child) |