| # overwrite previously seen values | |
| A <old-a-email> | |
| A-overwritten <old-a-email> | |
| B <new-b-email> <old-b-email> | |
| B-overwritten <new-b-email-overwritten> <old-b-email> | |
| C <new-c-email> old-C <old-c-email> | |
| C-overwritten <new-c-email-overwritten> old-C <old-c-email> | |
| <new-d-email> <old-d-email> | |
| <new-d-email-overwritten> <old-d-email> |