Reference Different Log Than Alerting On

I am setting up a "Rule". I send a request and that request might have 500 log lines. I have a "final failure" log line that I need to alert off of, but the failure reason is in a separate log line. Is it possible to display a separate log line in the body of an email relay?

So "final failure" triggers the rule but the email references a different log line using a value that associates the 2 logs as part of a single request.

Bump

Anyone?