Creating BPM workflow rule for GL - Condition Browser/Expression Builder lookup values

Summary: I was wondering if anyone had any specific information about the names of the BPM task configuration workflow Condition Browser/Expression Builder lookup list values and how to discern which of the selections in the lookups correspond to the actual table names in the Create Journals page. Screenshots will probably help. Please see those.

Content (please ensure you mask any confidential information): Trying to make a new rule to reject journals based on segment dimension member and cannot find the exact field or item in the task configuration for Supervisory_JournalApproval ruleset under the Conditional logic and expression builder. If someone could help with matching up the exact field names between the Create Journal page in the UI and the BPM Worklist task configuration expression builder Lookups that would be very helpful. Or where the BPM Worklist Task Configuration table names for that part of the ruleset IF/THEN logic can be found?