Ruud streamlined it a little too much:
Optimizing combination:
MATCH # unset
:0 B D fw h
* aaa|bbb|ccc|ddd|\/eee
* 1^0
* 9876543210^0 ()\/aaa
* 9876543210^0 ()\/bbb
* 9876543210^0 ()\/ccc
| formail -I "X-Procmail: alphabet soup: ${MATCH-ddd}"
:0 A
alphabet/soup
If ddd and eee are both present but eee occurs before ddd shows up, it
will pick up eee.
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